22639924 has 12 divisors (see below), whose sum is σ = 39682048. Its totient is φ = 11302200.

The previous prime is 22639921. The next prime is 22639931. The reversal of 22639924 is 42993622.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22639921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332 + ... + 6859.

Almost surely, 2^22639924 is an apocalyptic number.

It is an amenable number.

22639924 is a deficient number, since it is larger than the sum of its proper divisors (17042124).

22639924 is a wasteful number, since it uses less digits than its factorization.

22639924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8886 (or 8884 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The square root of 22639924 is about 4758.1429150457. The cubic root of 22639924 is about 282.8948153845.

The spelling of 22639924 in words is "twenty-two million, six hundred thirty-nine thousand, nine hundred twenty-four".