264736256 has 40 divisors (see below), whose sum is σ = 551978064. Its totient is φ = 126607360.

The previous prime is 264736243. The next prime is 264736301. The reversal of 264736256 is 652637462.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536 + ... + 23016.

Almost surely, 2^264736256 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 264736256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275989032).

264736256 is an abundant number, since it is smaller than the sum of its proper divisors (287241808).

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

264736256 is an equidigital number, since it uses as much as digits as its factorization.

264736256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22522 (or 22506 counting only the distinct ones).

The product of its digits is 362880, while the sum is 41.

The square root of 264736256 is about 16270.7177469219. The cubic root of 264736256 is about 642.1026676255.

The spelling of 264736256 in words is "two hundred sixty-four million, seven hundred thirty-six thousand, two hundred fifty-six".