22972868 has 18 divisors (see below), whose sum is σ = 40633866. Its totient is φ = 11364288.

The previous prime is 22972867. The next prime is 22972877. The reversal of 22972868 is 86827922.

It can be written as a sum of positive squares in 3 ways, for example, as 9604 + 22963264 = 98^2 + 4792^2 .

It is not an unprimeable number, because it can be changed into a prime (22972861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98480 + ... + 98712.

It is an arithmetic number, because the mean of its divisors is an integer number (2257437).

Almost surely, 2^22972868 is an apocalyptic number.

It is an amenable number.

22972868 is a deficient number, since it is larger than the sum of its proper divisors (17660998).

22972868 is a wasteful number, since it uses less digits than its factorization.

22972868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 392 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 22972868 is about 4793.0019820568. The cubic root of 22972868 is about 284.2748281890.

The spelling of 22972868 in words is "twenty-two million, nine hundred seventy-two thousand, eight hundred sixty-eight".