256333356 has 48 divisors (see below), whose sum is σ = 665491680. Its totient is φ = 85325760.

The previous prime is 256333289. The next prime is 256333379. The reversal of 256333356 is 653333652.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 256333356.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113470 + ... + 115706.

It is an arithmetic number, because the mean of its divisors is an integer number (13864410).

Almost surely, 2^256333356 is an apocalyptic number.

It is an amenable number.

256333356 is an abundant number, since it is smaller than the sum of its proper divisors (409158324).

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

256333356 is a wasteful number, since it uses less digits than its factorization.

256333356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311 (or 3303 counting only the distinct ones).

The product of its digits is 145800, while the sum is 36.

The square root of 256333356 is about 16010.4139859031. The cubic root of 256333356 is about 635.2359104441.

The spelling of 256333356 in words is "two hundred fifty-six million, three hundred thirty-three thousand, three hundred fifty-six".