22644984 has 16 divisors (see below), whose sum is σ = 56612520. Its totient is φ = 7548320.

The previous prime is 22644943. The next prime is 22645009. The reversal of 22644984 is 48944622.

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, 471747 + ... + 471794.

Almost surely, 2^22644984 is an apocalyptic number.

22644984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22644984 is an abundant number, since it is smaller than the sum of its proper divisors (33967536).

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

22644984 is a wasteful number, since it uses less digits than its factorization.

22644984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943550 (or 943546 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 22644984 is about 4758.6746053917. The cubic root of 22644984 is about 282.9158893825.

The spelling of 22644984 in words is "twenty-two million, six hundred forty-four thousand, nine hundred eighty-four".