1457639856 has 30 divisors (see below), whose sum is σ = 4079367500. Its totient is φ = 485879904.

The previous prime is 1457639851. The next prime is 1457639863. The reversal of 1457639856 is 6589367541.

1457639856 is a `hidden beast` number, since 14 + 576 + 3 + 9 + 8 + 56 = 666.

It is not an unprimeable number, because it can be changed into a prime (1457639851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5061106 + ... + 5061393.

Almost surely, 2^1457639856 is an apocalyptic number.

1457639856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1457639856 is an abundant number, since it is smaller than the sum of its proper divisors (2621727644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1457639856 is a wasteful number, since it uses less digits than its factorization.

1457639856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122513 (or 10122504 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 1457639856 is about 38179.0499619883. The cubic root of 1457639856 is about 1133.8355724007.

The spelling of 1457639856 in words is "one billion, four hundred fifty-seven million, six hundred thirty-nine thousand, eight hundred fifty-six".