256366022 has 16 divisors (see below), whose sum is σ = 420360192. Its totient is φ = 116293320.

The previous prime is 256365997. The next prime is 256366039. The reversal of 256366022 is 220663652.

It is a super-2 number, since 2×256366022² = 131447074472208968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256366022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518 + ... + 22649.

It is an arithmetic number, because the mean of its divisors is an integer number (26272512).

Almost surely, 2^256366022 is an apocalyptic number.

256366022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256366022 is a deficient number, since it is larger than the sum of its proper divisors (163994170).

256366022 is a wasteful number, since it uses less digits than its factorization.

256366022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23683.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 256366022 is about 16011.4341019160. The cubic root of 256366022 is about 635.2628931919.

The spelling of 256366022 in words is "two hundred fifty-six million, three hundred sixty-six thousand, twenty-two".