257920352 has 24 divisors (see below), whose sum is σ = 508663512. Its totient is φ = 128736000.

The previous prime is 257920331. The next prime is 257920357. The reversal of 257920352 is 253029752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257920357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12527 + ... + 25937.

It is an arithmetic number, because the mean of its divisors is an integer number (21194313).

Almost surely, 2^257920352 is an apocalyptic number.

It is an amenable number.

257920352 is a deficient number, since it is larger than the sum of its proper divisors (250743160).

257920352 is a wasteful number, since it uses less digits than its factorization.

257920352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14022 (or 14014 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 257920352 is about 16059.8988788846. The cubic root of 257920352 is about 636.5441593671.

The spelling of 257920352 in words is "two hundred fifty-seven million, nine hundred twenty thousand, three hundred fifty-two".