257673264 has 20 divisors (see below), whose sum is σ = 665656056. Its totient is φ = 85891072.

The previous prime is 257673263. The next prime is 257673289. The reversal of 257673264 is 462376752.

257673264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (257673263) 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, 2684049 + ... + 2684144.

Almost surely, 2^257673264 is an apocalyptic number.

257673264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

257673264 is an abundant number, since it is smaller than the sum of its proper divisors (407982792).

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

257673264 is a wasteful number, since it uses less digits than its factorization.

257673264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368204 (or 5368198 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The square root of 257673264 is about 16052.2043346078. The cubic root of 257673264 is about 636.3408244043.

The spelling of 257673264 in words is "two hundred fifty-seven million, six hundred seventy-three thousand, two hundred sixty-four".