256296722 has 32 divisors (see below), whose sum is σ = 439879680. Its totient is φ = 110920320.

The previous prime is 256296721. The next prime is 256296731. The reversal of 256296722 is 227692652.

256296722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 256296722.

It is not an unprimeable number, because it can be changed into a prime (256296721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43823 + ... + 49325.

It is an arithmetic number, because the mean of its divisors is an integer number (13746240).

Almost surely, 2^256296722 is an apocalyptic number.

256296722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256296722 is a deficient number, since it is larger than the sum of its proper divisors (183582958).

256296722 is a wasteful number, since it uses less digits than its factorization.

256296722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618.

The product of its digits is 181440, while the sum is 41.

The square root of 256296722 is about 16009.2698771680. The cubic root of 256296722 is about 635.2056473245.

The spelling of 256296722 in words is "two hundred fifty-six million, two hundred ninety-six thousand, seven hundred twenty-two".