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1440214041 = 3717191131879
BaseRepresentation
bin101010111010111…
…1110110000011001
310201101000110020210
41111311332300121
510422143322131
6354524441333
750455421520
oct12565766031
93641013223
101440214041
11679a66142
123423a9249
1319c4bb876
14d93bd4b7
158668a146
hex55d7ec19

1440214041 has 64 divisors (see below), whose sum is σ = 2468966400. Its totient is φ = 726921216.

The previous prime is 1440214019. The next prime is 1440214043. The reversal of 1440214041 is 1404120441.

It is not a de Polignac number, because 1440214041 - 210 = 1440213017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1440213999 and 1440214017.

It is not an unprimeable number, because it can be changed into a prime (1440214043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 765540 + ... + 767418.

It is an arithmetic number, because the mean of its divisors is an integer number (38577600).

Almost surely, 21440214041 is an apocalyptic number.

It is an amenable number.

1440214041 is a deficient number, since it is larger than the sum of its proper divisors (1028752359).

1440214041 is a wasteful number, since it uses less digits than its factorization.

1440214041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1440214041 is about 37950.1520550313. The cubic root of 1440214041 is about 1129.2991819666.

Adding to 1440214041 its reverse (1404120441), we get a palindrome (2844334482).

The spelling of 1440214041 in words is "one billion, four hundred forty million, two hundred fourteen thousand, forty-one".

Divisors: 1 3 7 17 19 21 51 57 113 119 133 323 339 357 399 791 969 1879 1921 2147 2261 2373 5637 5763 6441 6783 13153 13447 15029 31943 35701 36499 39459 40341 45087 95829 107103 109497 212327 223601 249907 255493 606917 636981 670803 749721 766479 1486289 1820751 3609559 4034213 4248419 4458867 10828677 12102639 12745257 25266913 28239491 68581621 75800739 84718473 205744863 480071347 1440214041