256792458 has 24 divisors (see below), whose sum is σ = 556132608. Its totient is φ = 79012752.

The previous prime is 256792457. The next prime is 256792513. The reversal of 256792458 is 854297652.

It is not an unprimeable number, because it can be changed into a prime (256792451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125610 + ... + 127637.

It is an arithmetic number, because the mean of its divisors is an integer number (23172192).

Almost surely, 2^256792458 is an apocalyptic number.

256792458 is an abundant number, since it is smaller than the sum of its proper divisors (299340150).

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

256792458 is a wasteful number, since it uses less digits than its factorization.

256792458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253278 (or 253265 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 256792458 is about 16024.7451773811. The cubic root of 256792458 is about 635.6149274960.

The spelling of 256792458 in words is "two hundred fifty-six million, seven hundred ninety-two thousand, four hundred fifty-eight".