256584832 has 32 divisors (see below), whose sum is σ = 584190720. Its totient is φ = 109964544.

The previous prime is 256584821. The next prime is 256584833. The reversal of 256584832 is 238485652.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (256584833) 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, 142288 + ... + 144079.

It is an arithmetic number, because the mean of its divisors is an integer number (18255960).

Almost surely, 2^256584832 is an apocalyptic number.

It is an amenable number.

256584832 is an abundant number, since it is smaller than the sum of its proper divisors (327605888).

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

256584832 is an equidigital number, since it uses as much as digits as its factorization.

256584832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286388 (or 286376 counting only the distinct ones).

The product of its digits is 460800, while the sum is 43.

The square root of 256584832 is about 16018.2655740252. The cubic root of 256584832 is about 635.4435754120.

The spelling of 256584832 in words is "two hundred fifty-six million, five hundred eighty-four thousand, eight hundred thirty-two".