22722984 has 32 divisors (see below), whose sum is σ = 63120000. Its totient is φ = 7574256.

The previous prime is 22722961. The next prime is 22722991. The reversal of 22722984 is 48922722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52384 + ... + 52815.

It is an arithmetic number, because the mean of its divisors is an integer number (1972500).

Almost surely, 2^22722984 is an apocalyptic number.

22722984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22722984 is an abundant number, since it is smaller than the sum of its proper divisors (40397016).

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

22722984 is a wasteful number, since it uses less digits than its factorization.

22722984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105214 (or 105204 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 22722984 is about 4766.8631194948. The cubic root of 22722984 is about 283.2403490341.

The spelling of 22722984 in words is "twenty-two million, seven hundred twenty-two thousand, nine hundred eighty-four".