256013832 has 32 divisors (see below), whose sum is σ = 647750880. Its totient is φ = 84309120.

The previous prime is 256013773. The next prime is 256013833. The reversal of 256013832 is 238310652.

It is a self number, because there is not a number n which added to its sum of digits gives 256013832.

It is not an unprimeable number, because it can be changed into a prime (256013833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62269 + ... + 66252.

It is an arithmetic number, because the mean of its divisors is an integer number (20242215).

Almost surely, 2^256013832 is an apocalyptic number.

It is an amenable number.

256013832 is an abundant number, since it is smaller than the sum of its proper divisors (391737048).

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

256013832 is a wasteful number, since it uses less digits than its factorization.

256013832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128613 (or 128609 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 256013832 is about 16000.4322441614. The cubic root of 256013832 is about 634.9718564831.

The spelling of 256013832 in words is "two hundred fifty-six million, thirteen thousand, eight hundred thirty-two".