22612372 has 12 divisors (see below), whose sum is σ = 39700276. Its totient is φ = 11269440.

The previous prime is 22612327. The next prime is 22612391. The reversal of 22612372 is 27321622.

It can be written as a sum of positive squares in 2 ways, for example, as 7214596 + 15397776 = 2686^2 + 3924^2 .

It is a super-2 number, since 2×22612372² = 1022638734932768, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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, 7779 + ... + 10282.

Almost surely, 2^22612372 is an apocalyptic number.

It is an amenable number.

22612372 is a deficient number, since it is larger than the sum of its proper divisors (17087904).

22612372 is a wasteful number, since it uses less digits than its factorization.

22612372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18378 (or 18376 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 22612372 is about 4755.2467864455. The cubic root of 22612372 is about 282.7800110843.

Adding to 22612372 its reverse (27321622), we get a palindrome (49933994).

The spelling of 22612372 in words is "twenty-two million, six hundred twelve thousand, three hundred seventy-two".