22331924 has 12 divisors (see below), whose sum is σ = 39207924. Its totient is φ = 11129664.

The previous prime is 22331923. The next prime is 22331929. The reversal of 22331924 is 42913322.

It can be written as a sum of positive squares in 2 ways, for example, as 7739524 + 14592400 = 2782^2 + 3820^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22331893 and 22331902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7667 + ... + 10170.

It is an arithmetic number, because the mean of its divisors is an integer number (3267327).

Almost surely, 2^22331924 is an apocalyptic number.

It is an amenable number.

22331924 is a deficient number, since it is larger than the sum of its proper divisors (16876000).

22331924 is a wasteful number, since it uses less digits than its factorization.

22331924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18154 (or 18152 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 22331924 is about 4725.6665138370. Note that the first 3 decimals coincide. The cubic root of 22331924 is about 281.6060928918.

The spelling of 22331924 in words is "twenty-two million, three hundred thirty-one thousand, nine hundred twenty-four".