22072568 has 16 divisors (see below), whose sum is σ = 47298480. Its totient is φ = 9459648.

The previous prime is 22072553. The next prime is 22072573. The reversal of 22072568 is 86527022.

It is a super-2 number, since 2×22072568² = 974396516229248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197021 + ... + 197132.

It is an arithmetic number, because the mean of its divisors is an integer number (2956155).

Almost surely, 2^22072568 is an apocalyptic number.

22072568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22072568 is an abundant number, since it is smaller than the sum of its proper divisors (25225912).

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

22072568 is a wasteful number, since it uses less digits than its factorization.

22072568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394166 (or 394162 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 22072568 is about 4698.1451659139. The cubic root of 22072568 is about 280.5116834069.

The spelling of 22072568 in words is "twenty-two million, seventy-two thousand, five hundred sixty-eight".