256226264 has 16 divisors (see below), whose sum is σ = 549056400. Its totient is φ = 109811232.

The previous prime is 256226249. The next prime is 256226273. The reversal of 256226264 is 462622652.

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, 2287679 + ... + 2287790.

It is an arithmetic number, because the mean of its divisors is an integer number (34316025).

Almost surely, 2^256226264 is an apocalyptic number.

It is an amenable number.

256226264 is an abundant number, since it is smaller than the sum of its proper divisors (292830136).

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

256226264 is a wasteful number, since it uses less digits than its factorization.

256226264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575482 (or 4575478 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 256226264 is about 16007.0691883305. The cubic root of 256226264 is about 635.1474343010.

The spelling of 256226264 in words is "two hundred fifty-six million, two hundred twenty-six thousand, two hundred sixty-four".