| Nominal | 21418 |
| Cardinal | twenty-one thousand four hundred eighteen |
Cardinal twenty-one thousand four hundred eighteen | |
| Ordinal | 21,418th |
| Number of digits | 5 |
| Sum of digits | 16 |
| Product of digits | 64 |
| Number parity | Even |
| Prime factorization | 2 x 10709 |
| Prime factors | 2, 10709 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 10711 |
| Product of prime factors | 21418 |
| Is 21418 a prime number? | No |
| Is 21418 a semiprime number? | Yes |
| Is 21418 a Chen prime number? | No |
| Is 21418 a Mersenne prime number? | No |
| Is 21418 a Catalan number? | No |
| Is 21418 a Fibonacci number? | No |
| Is 21418 a Idoneal number? | No |
| Square of 21418 (n2) | 458730724 |
| Cube of 21418 (n3) | 9825094646632 |
| Square root of 21418 | 146.34889818512 |
| Natural Logarithm (ln) of 21418 | 9.9719869689608 |
| Decimal Logarithm (log) of 21418 | 4.3307789142308 |
| Sine of 21418 | -0.98160849207784 |
| Cosecant of 21418 | -1.0187360929236 |
| Cosine of 21418 | 0.19090512900564 |
| Secant of 21418 | 5.2382039456386 |
| Tangent of 21418 | -5.1418654762745 |
| Cotangent of 21418 | -0.19448194524228 |
| The spelling of 21418 in words is "twenty-one thousand four hundred eighteen", meaning that: |
| 21418 is not an aban number (as it contains the letter a) |
| 21418 is not an eban number (as it contains the letter e) |
| 21418 is not an iban number (as it contains the letter i) |
| 21418 is not an oban number (as it contains the letter o) |
| 21418 is not a tban number (as it contains the letter t) |
| 21418 is not an uban number (as it contains the letter u) |
| Bengali numerals | ২১৪১৮ |
| Eastern Arabic numerals | ٢١٬٤١٨ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓆼𓍥𓎆𓐁 |
| Khmer numerals | ២១៤១៨ |
| Japanese numerals | 二万千四百十八 |
| Roman numerals | n/a |
| Thai numerals | ๒๑๔๑๘ |
| Arabic | واحد و عشرون ألف و أربعة مائة و ثمانية عشر |
| Croatian | dvadeset i jedna tisuća četiristo osamnaest |
| Czech | dvacet jedna tisíc čtyři sta osmnáct |
| Danish | en og tyve tusinde fire hundrede atten |
| Dutch | éénentwintigduizend vierhonderdachttien |
| Estonian | akpe blaeve vɔ ɖekɛ alafa ene kple wuienyi |
| Faroese | tjúgoeitt tusin og fýrehundraðogátjan |
| Filipino | dalawáng pû’t isáng libó’t ápat na daán at labíng-waló |
| Finnish | kaksikymmentäyksituhattaneljäsataakahdeksantoista |
| French | vingt et un mille quatre cent dix-huit |
| Greek | είκοσι μία χίλιάδες τετρακόσια δεκαοκτώ |
| German | einundzwanzigtausendvierhundertachtzehn |
| Hebrew | עשרים ואחד אלף ארבע מאות ושמונה עשרה |
| Hindi | इक्कीस हज़ार चार सौ अठारह |
| Hungarian | huszonegyezernégyszáztizennyolc |
| Icelandic | tuttugu og eitt þúsund og fjögurhundrað og átján |
| Indonesian | dua puluh satu ribu empat ratus delapan belas |
| Italian | ventunomilaquattrocentodiciotto |
| Japanese | 二万千四百十八 |
| Korean | 이만 천사백십팔 |
| Latvian | divdesmit viens tūkstoši četrsimt astoņpadsmit |
| Lithuanian | dvidešimt vienas tūkstantis keturi šimtai aštuoniolika |
| Norwegian | tjueett tusen fire hundre og atten |
| Persian | بیست و یک هزار و چهارصد و هجده |
| Polish | dwadzieścia jeden tysięcy czterysta osiemnaście |
| Portuguese | vinte e um mil quatrocentos e dezoito |
| Romanian | douăzeci şi una mii patru sute optsprezece |
| Russian | двадцать одна тысяча четыреста восемнадцать |
| Serbian | двадесет и једна хиљада четиристо осамнаест |
| Slovak | dvadsaťjedna tisíc štyristo osemnásť |
| Slovene | dvaset ena tisuću štiristo asemnajst |
| Spanish | veintiún mil cuatrocientos dieciocho |
| Swahili | elfu ishirini na moja, mia nne na kumi na nane |
| Swedish | tjugoentusenfyrahundraarton |
| Thai | สองหมื่นหนึ่งพันสี่ร้อยสิบแปด |
| Turkish | yirmi bir bin dört yüz on sekiz |
| Ukrainian | двадцять одна тисяча чотириста вісімнадцять |
| Vietnamese | hai mươi mốt nghìn bốn trăm mười tám |
| Number 21418 reversed | 81412 | |
| Unicode Character | U+53AA | 厪 |
| Unix Timestamp | Thu, 01 Jan 1970 05:56:58 +0000 | |