| Nominal | 40421 |
| Cardinal | forty thousand four hundred twenty-one |
Cardinal forty thousand four hundred twenty-one | |
| Ordinal | 40,421st |
| Number of digits | 5 |
| Sum of digits | 11 |
| Product of digits | 0 |
| Number parity | Odd |
| Prime factorization | 83 x 487 |
| Prime factors | 83, 487 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 570 |
| Product of prime factors | 40421 |
| Is 40421 a prime number? | No |
| Is 40421 a semiprime number? | Yes |
| Is 40421 a Chen prime number? | No |
| Is 40421 a Mersenne prime number? | No |
| Is 40421 a Catalan number? | No |
| Is 40421 a Fibonacci number? | No |
| Is 40421 a Idoneal number? | No |
| Square of 40421 (n2) | 1633857241 |
| Cube of 40421 (n3) | 66042143538461 |
| Square root of 40421 | 201.04974508812 |
| Natural Logarithm (ln) of 40421 | 10.607104730879 |
| Decimal Logarithm (log) of 40421 | 4.6066070535907 |
| Sine of 40421 | 0.95477999232456 |
| Cosecant of 40421 | 1.0473617043078 |
| Cosine of 40421 | 0.29731324601624 |
| Secant of 40421 | 3.363455928719 |
| Tangent of 40421 | 3.2113604258063 |
| Cotangent of 40421 | 0.31139450806084 |
| The spelling of 40421 in words is "forty thousand four hundred twenty-one", meaning that: |
| 40421 is not an aban number (as it contains the letter a) |
| 40421 is not an eban number (as it contains the letter e) |
| 40421 is an iban number (a number without the letter i) |
| 40421 is not an oban number (as it contains the letter o) |
| 40421 is not a tban number (as it contains the letter t) |
| 40421 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৪০৪২১ |
| Eastern Arabic numerals | ٤٠٬٤٢١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓂭𓂭𓍥𓎇𓏺 |
| Khmer numerals | ៤០៤២១ |
| Japanese numerals | 四万四百二十一 |
| Roman numerals | n/a |
| Thai numerals | ๔๐๔๒๑ |
| Arabic | أربعون ألف و أربعة مائة و واحد و عشرون |
| Croatian | četrdeset tisuća četiristo dvadeset i jedan |
| Czech | čtyřicet tisíc čtyři sta dvacet jeden |
| Danish | fyrre tusinde fire hundrede en og tyve |
| Dutch | veertigduizend vierhonderdéénentwintig |
| Estonian | akpe blaene alafa ene blaeve vɔ ɖekɛ |
| Faroese | fýrati tusin og fýrehundraðogtjúgoein |
| Filipino | ápat na pû libó’t ápat na daán at dalawáng pû’t isá |
| Finnish | neljäkymmentätuhattaneljäsataakaksikymmentäyksi |
| French | quarante mille quatre cent vingt et un |
| Greek | σαράντα χίλιάδες τετρακόσια είκοσι ένα |
| German | vierzigtausendvierhunderteinundzwanzig |
| Hebrew | ארבעים אלף ארבע מאות עשרים ואחת |
| Hindi | चालीस हज़ार चार सौ इक्कीस |
| Hungarian | negyvenezernégyszázhuszonegy |
| Icelandic | fjörutíu þúsund og fjögurhundrað og tuttugu og einn |
| Indonesian | empat puluh ribu empat ratus dua puluh satu |
| Italian | quarantamilaquattrocentoventuno |
| Japanese | 四万四百二十一 |
| Korean | 사만 사백이십일 |
| Latvian | četrdesmit tūkstoši četrsimt divdesmit viens |
| Lithuanian | keturiasdešimt tūkstančių keturi šimtai dvidešimt vienas |
| Norwegian | førti tusen fire hundre og tjueén |
| Persian | چهل هزار و چهارصد و بیست و یک |
| Polish | czterdzieści tysięcy czterysta dwadzieścia jeden |
| Portuguese | quarenta mil quatrocentos e vinte e um |
| Romanian | patruzeci mii patru sute douăzeci şi unu |
| Russian | сорок тысяч четыреста двадцать один |
| Serbian | четрдесет хиљада четиристо двадесет и један |
| Slovak | štyridsať tisíc štyristo dvadsaťjeden |
| Slovene | štirideset tisuću štiristo dvaset ena |
| Spanish | cuarenta mil cuatrocientos veintiuno |
| Swahili | elfu arobaini, mia nne na ishirini na moja |
| Swedish | fyrtiotusenfyrahundratjugoen |
| Thai | สี่หมื่นสี่ร้อยยี่สิบเอ็ด |
| Turkish | kırk bin dört yüz yirmi bir |
| Ukrainian | сорок тисяч чотириста двадцять один |
| Vietnamese | bốn mươi nghìn bốn trăm hai mươi mốt |
| Number 40421 reversed | 12404 | |
| Unicode Character | U+9DE5 | 鷥 |
| Unix Timestamp | Thu, 01 Jan 1970 11:13:41 +0000 | |