257607372 has 48 divisors (see below), whose sum is σ = 656998272. Its totient is φ = 77911680.

The previous prime is 257607347. The next prime is 257607397. The reversal of 257607372 is 273706752.

It is an interprime number because it is at equal distance from previous prime (257607347) and next prime (257607397).

It is a self number, because there is not a number n which added to its sum of digits gives 257607372.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79863 + ... + 83025.

It is an arithmetic number, because the mean of its divisors is an integer number (13687464).

Almost surely, 2^257607372 is an apocalyptic number.

257607372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

257607372 is an abundant number, since it is smaller than the sum of its proper divisors (399390900).

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

257607372 is a wasteful number, since it uses less digits than its factorization.

257607372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798 (or 3796 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 39.

The square root of 257607372 is about 16050.1517749833. The cubic root of 257607372 is about 636.2865782587.

The spelling of 257607372 in words is "two hundred fifty-seven million, six hundred seven thousand, three hundred seventy-two".