22544972 has 12 divisors (see below), whose sum is σ = 39502680. Its totient is φ = 11258496.

The previous prime is 22544953. The next prime is 22544983. The reversal of 22544972 is 27944522.

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, 683 + ... + 6749.

It is an arithmetic number, because the mean of its divisors is an integer number (3291890).

Almost surely, 2^22544972 is an apocalyptic number.

It is an amenable number.

22544972 is a deficient number, since it is larger than the sum of its proper divisors (16957708).

22544972 is a wasteful number, since it uses less digits than its factorization.

22544972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7000 (or 6998 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 22544972 is about 4748.1545888903. The cubic root of 22544972 is about 282.4987735870.

The spelling of 22544972 in words is "twenty-two million, five hundred forty-four thousand, nine hundred seventy-two".