22530904 has 16 divisors (see below), whose sum is σ = 46086120. Its totient is φ = 10241280.

The previous prime is 22530901. The next prime is 22530917. The reversal of 22530904 is 40903522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22530901) 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, 127929 + ... + 128104.

Almost surely, 2^22530904 is an apocalyptic number.

It is an amenable number.

22530904 is an abundant number, since it is smaller than the sum of its proper divisors (23555216).

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

22530904 is a wasteful number, since it uses less digits than its factorization.

22530904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256050 (or 256046 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22530904 is about 4746.6729400708. The cubic root of 22530904 is about 282.4400018771.

The spelling of 22530904 in words is "twenty-two million, five hundred thirty thousand, nine hundred four".