22809472 has 32 divisors (see below), whose sum is σ = 51934320. Its totient is φ = 9775104.

The previous prime is 22809463. The next prime is 22809497. The reversal of 22809472 is 27490822.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 11833 + ... + 13624.

Almost surely, 2^22809472 is an apocalyptic number.

It is an amenable number.

22809472 is an abundant number, since it is smaller than the sum of its proper divisors (29124848).

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

22809472 is an equidigital number, since it uses as much as digits as its factorization.

22809472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25478 (or 25466 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 22809472 is about 4775.9262975888. The cubic root of 22809472 is about 283.5992496215.

The spelling of 22809472 in words is "twenty-two million, eight hundred nine thousand, four hundred seventy-two".