22012992 has 56 divisors (see below), whose sum is σ = 64719200. Its totient is φ = 7337088.

The previous prime is 22012981. The next prime is 22013021. The reversal of 22012992 is 29921022.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4642 + ... + 8097.

It is an arithmetic number, because the mean of its divisors is an integer number (1155700).

Almost surely, 2^22012992 is an apocalyptic number.

It is an amenable number.

22012992 is an abundant number, since it is smaller than the sum of its proper divisors (42706208).

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

22012992 is a wasteful number, since it uses less digits than its factorization.

22012992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12760 (or 12744 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 22012992 is about 4691.8005072680. The cubic root of 22012992 is about 280.2590799311.

The spelling of 22012992 in words is "twenty-two million, twelve thousand, nine hundred ninety-two".