22972648 has 16 divisors (see below), whose sum is σ = 43124580. Its totient is φ = 11472768.

The previous prime is 22972639. The next prime is 22972667. The reversal of 22972648 is 84627922.

It can be written as a sum of positive squares in 2 ways, for example, as 22638564 + 334084 = 4758^2 + 578^2 .

It is a super-2 number, since 2×22972648² = 1055485112263808, 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 22972648.

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, 12390 + ... + 14122.

Almost surely, 2^22972648 is an apocalyptic number.

It is an amenable number.

22972648 is a deficient number, since it is larger than the sum of its proper divisors (20151932).

22972648 is a wasteful number, since it uses less digits than its factorization.

22972648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396 (or 3392 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 22972648 is about 4792.9790318757. The cubic root of 22972648 is about 284.2739207321.

The spelling of 22972648 in words is "twenty-two million, nine hundred seventy-two thousand, six hundred forty-eight".