256222874 has 16 divisors (see below), whose sum is σ = 402660096. Its totient is φ = 122126400.

The previous prime is 256222873. The next prime is 256222907. The reversal of 256222874 is 478222652.

256222874 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256222874² = 131300322321639752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256222873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26687 + ... + 34994.

It is an arithmetic number, because the mean of its divisors is an integer number (25166256).

Almost surely, 2^256222874 is an apocalyptic number.

256222874 is a deficient number, since it is larger than the sum of its proper divisors (146437222).

256222874 is a wasteful number, since it uses less digits than its factorization.

256222874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61781.

The product of its digits is 107520, while the sum is 38.

The square root of 256222874 is about 16006.9632972653. The cubic root of 256222874 is about 635.1446331839.

The spelling of 256222874 in words is "two hundred fifty-six million, two hundred twenty-two thousand, eight hundred seventy-four".