256791832 has 48 divisors (see below), whose sum is σ = 537075720. Its totient is φ = 114153600.

The previous prime is 256791827. The next prime is 256791889. The reversal of 256791832 is 238197652.

256791832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193732 + ... + 195052.

Almost surely, 2^256791832 is an apocalyptic number.

256791832 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256791832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268537860).

256791832 is an abundant number, since it is smaller than the sum of its proper divisors (280283888).

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

256791832 is a wasteful number, since it uses less digits than its factorization.

256791832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432 (or 1381 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The square root of 256791832 is about 16024.7256450774. The cubic root of 256791832 is about 635.6144110020.

The spelling of 256791832 in words is "two hundred fifty-six million, seven hundred ninety-one thousand, eight hundred thirty-two".