22920424 has 16 divisors (see below), whose sum is σ = 43226820. Its totient is φ = 11393280.

The previous prime is 22920409. The next prime is 22920431. The reversal of 22920424 is 42402922.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22867524 + 52900 = 4782^2 + 230^2 .

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, 6897 + ... + 9664.

Almost surely, 2^22920424 is an apocalyptic number.

It is an amenable number.

22920424 is a deficient number, since it is larger than the sum of its proper divisors (20306396).

22920424 is a wasteful number, since it uses less digits than its factorization.

22920424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16740 (or 16736 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 22920424 is about 4787.5279633648. The cubic root of 22920424 is about 284.0583428374.

The spelling of 22920424 in words is "twenty-two million, nine hundred twenty thousand, four hundred twenty-four".