256852788 has 12 divisors (see below), whose sum is σ = 599323200. Its totient is φ = 85617592.

The previous prime is 256852777. The next prime is 256852807. The reversal of 256852788 is 887258652.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 256852788.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10702188 + ... + 10702211.

It is an arithmetic number, because the mean of its divisors is an integer number (49943600).

Almost surely, 2^256852788 is an apocalyptic number.

It is an amenable number.

256852788 is an abundant number, since it is smaller than the sum of its proper divisors (342470412).

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

256852788 is a wasteful number, since it uses less digits than its factorization.

256852788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21404406 (or 21404404 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 51.

The square root of 256852788 is about 16026.6274680608. The cubic root of 256852788 is about 635.6647000455.

The spelling of 256852788 in words is "two hundred fifty-six million, eight hundred fifty-two thousand, seven hundred eighty-eight".