22947984 has 30 divisors (see below), whose sum is σ = 64222886. Its totient is φ = 7649280.

The previous prime is 22947959. The next prime is 22947989. The reversal of 22947984 is 48974922.

It can be written as a sum of positive squares in only one way, i.e., 14653584 + 8294400 = 3828^2 + 2880^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22947989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79537 + ... + 79824.

Almost surely, 2^22947984 is an apocalyptic number.

22947984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22947984 is an abundant number, since it is smaller than the sum of its proper divisors (41274902).

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

22947984 is a wasteful number, since it uses less digits than its factorization.

22947984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159375 (or 159366 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 22947984 is about 4790.4054108186. The cubic root of 22947984 is about 284.1721498107.

The spelling of 22947984 in words is "twenty-two million, nine hundred forty-seven thousand, nine hundred eighty-four".