257034064 has 40 divisors (see below), whose sum is σ = 570205568. Its totient is φ = 109952640.

The previous prime is 257034017. The next prime is 257034097. The reversal of 257034064 is 460430752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68854 + ... + 72490.

Almost surely, 2^257034064 is an apocalyptic number.

It is an amenable number.

257034064 is an abundant number, since it is smaller than the sum of its proper divisors (313171504).

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

257034064 is a wasteful number, since it uses less digits than its factorization.

257034064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283 (or 4277 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 257034064 is about 16032.2819336487. The cubic root of 257034064 is about 635.8142067692.

The spelling of 257034064 in words is "two hundred fifty-seven million, thirty-four thousand, sixty-four".