| Nominal | 42640 |
| Cardinal | forty-two thousand six hundred forty |
Cardinal forty-two thousand six hundred forty | |
| Ordinal | 42,640th |
| Number of digits | 5 |
| Sum of digits | 16 |
| Product of digits | 0 |
| Number parity | Even |
| Prime factorization | 2 x 2 x 2 x 2 x 5 x 13 x 41 |
| Prime factorization in exponent form | 24 x 5 x 13 x 41 |
| Prime factors | 2, 5, 13, 41 |
| Number of distinct prime factors ω(n) | 4 |
| Total number of prime factors Ω(n) | 7 |
| Sum of prime factors | 61 |
| Product of prime factors | 5330 |
| Is 42640 a prime number? | No |
| Is 42640 a semiprime number? | No |
| Is 42640 a Chen prime number? | No |
| Is 42640 a Mersenne prime number? | No |
| Is 42640 a Catalan number? | No |
| Is 42640 a Fibonacci number? | No |
| Is 42640 a Idoneal number? | No |
| Square of 42640 (n2) | 1818169600 |
| Cube of 42640 (n3) | 77526751744000 |
| Square root of 42640 | 206.49455198624 |
| Natural Logarithm (ln) of 42640 | 10.66054805884 |
| Decimal Logarithm (log) of 42640 | 4.6298171960185 |
| Sine of 42640 | 0.74269576084289 |
| Cosecant of 42640 | 1.346446354918 |
| Cosine of 42640 | -0.66962900685827 |
| Secant of 42640 | -1.4933642207224 |
| Tangent of 42640 | -1.109115276125 |
| Cotangent of 42640 | -0.90161953543171 |
| The spelling of 42640 in words is "forty-two thousand six hundred forty", meaning that: |
| 42640 is not an aban number (as it contains the letter a) |
| 42640 is not an eban number (as it contains the letter e) |
| 42640 is not an iban number (as it contains the letter i) |
| 42640 is not an oban number (as it contains the letter o) |
| 42640 is not a tban number (as it contains the letter t) |
| 42640 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৪২৬৪০ |
| Eastern Arabic numerals | ٤٢٬٦٤٠ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓂭𓂭𓆼𓆼𓍧𓎉 |
| Khmer numerals | ៤២៦៤០ |
| Japanese numerals | 四万二千六百四十 |
| Roman numerals | n/a |
| Thai numerals | ๔๒๖๔๐ |
| Arabic | إثنان و أربعون ألف و ستة مائة و أربعون |
| Croatian | četrdeset i dvije tisuća šeststo četrdeset |
| Czech | čtyřicet dvě tisíc šest set čtyřicet |
| Danish | to og fyrre tusinde seks hundrede fyrre |
| Dutch | tweeenveertigduizend zeshonderdveertig |
| Estonian | akpe blaene vɔ eve alafa ade kple blaene |
| Faroese | fýratitvey tusin og sekshundraðogfýrati |
| Filipino | ápat na pû’t dalawáng libó’t anim na daán at ápat na pû |
| Finnish | neljäkymmentäkaksituhattakuusisataaneljäkymmentä |
| French | quarante-deux mille six cent quarante |
| Greek | σαράντα δύο χίλιάδες εξακόσια σαράντα |
| German | zweiundvierzigtausendsechshundertvierzig |
| Hebrew | ארבעים ושניים אלף שש מאות ארבעים |
| Hindi | बयालीस हज़ार छह सौ चालीस |
| Hungarian | negyvenkettőezerhatszáznegyven |
| Icelandic | fjörutíu og tvö þúsund og sexhundrað og fjörutíu |
| Indonesian | empat puluh dua ribu enam ratus empat puluh |
| Italian | quarantaduemilaseicentoquaranta |
| Japanese | 四万二千六百四十 |
| Korean | 사만 이천육백사십 |
| Latvian | četrdesmit divi tūkstoši sešsimt četrdesmit |
| Lithuanian | keturiasdešimt du tūkstančiai šeši šimtai keturiasdešimt |
| Norwegian | førtito tusen seks hundre og førti |
| Persian | چهل و دو هزار و ششصد و چهل |
| Polish | czterdzieści dwa tysiące sześćset czterdzieści |
| Portuguese | quarenta e dois mil seiscentos e quarenta |
| Romanian | patruzeci şi două mii şase sute patruzeci |
| Russian | сорок две тысячи шестьсот сорок |
| Serbian | четрдесет и две хиљада шестсто четрдесет |
| Slovak | štyridsaťdve tisíc šesťsto štyridsať |
| Slovene | štirideset dvije tisuću šesto štirideset |
| Spanish | cuarenta y dos mil seiscientos cuarenta |
| Swahili | elfu arobaini na mbili, mia sita na arobaini |
| Swedish | fyrtiotvåtusensexhundrafyrtio |
| Thai | สี่หมื่นสองพันหกร้อยสี่สิบ |
| Turkish | kırk iki bin altı yüz kırk |
| Ukrainian | сорок дві тисячі шістсот сорок |
| Vietnamese | bốn mươi hai nghìn sáu trăm bốn mươi |
| Number 42640 reversed | 04624 | |
| Unicode Character | U+A690 | Ꚑ |
| Unix Timestamp | Thu, 01 Jan 1970 11:50:40 +0000 | |