22529472 has 56 divisors (see below), whose sum is σ = 68128896. Its totient is φ = 6436608.

The previous prime is 22529453. The next prime is 22529483. The reversal of 22529472 is 27492522.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7038 + ... + 9725.

Almost surely, 2^22529472 is an apocalyptic number.

It is an amenable number.

22529472 is an abundant number, since it is smaller than the sum of its proper divisors (45599424).

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

22529472 is a wasteful number, since it uses less digits than its factorization.

22529472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16785 (or 16775 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 22529472 is about 4746.5220951766. The cubic root of 22529472 is about 282.4340180566.

The spelling of 22529472 in words is "twenty-two million, five hundred twenty-nine thousand, four hundred seventy-two".