22912866 has 12 divisors (see below), whose sum is σ = 49644582. Its totient is φ = 7637616.

The previous prime is 22912843. The next prime is 22912867. The reversal of 22912866 is 66821922.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22896225 + 16641 = 4785^2 + 129^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22912866.

It is not an unprimeable number, because it can be changed into a prime (22912867) 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, 636451 + ... + 636486.

Almost surely, 2^22912866 is an apocalyptic number.

22912866 is an abundant number, since it is smaller than the sum of its proper divisors (26731716).

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

22912866 is a wasteful number, since it uses less digits than its factorization.

22912866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272945 (or 1272942 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 22912866 is about 4786.7385556347. The cubic root of 22912866 is about 284.0271166993.

The spelling of 22912866 in words is "twenty-two million, nine hundred twelve thousand, eight hundred sixty-six".