264646256 has 60 divisors (see below), whose sum is σ = 615764160. Its totient is φ = 109751040.

The previous prime is 264646229. The next prime is 264646273. The reversal of 264646256 is 652646462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18860 + ... + 29748.

It is an arithmetic number, because the mean of its divisors is an integer number (10262736).

Almost surely, 2^264646256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264646256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307882080).

264646256 is an abundant number, since it is smaller than the sum of its proper divisors (351117904).

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

264646256 is a wasteful number, since it uses less digits than its factorization.

264646256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10942 (or 10929 counting only the distinct ones).

The product of its digits is 414720, while the sum is 41.

The square root of 264646256 is about 16267.9518071575. The cubic root of 264646256 is about 642.0298960920.

The spelling of 264646256 in words is "two hundred sixty-four million, six hundred forty-six thousand, two hundred fifty-six".