22920984 has 24 divisors (see below), whose sum is σ = 62077860. Its totient is φ = 7640304.

The previous prime is 22920983. The next prime is 22921013. The reversal of 22920984 is 48902922.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×22920984³ (a number of 23 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22920983) 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, 159102 + ... + 159245.

Almost surely, 2^22920984 is an apocalyptic number.

22920984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22920984 is an abundant number, since it is smaller than the sum of its proper divisors (39156876).

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

22920984 is a wasteful number, since it uses less digits than its factorization.

22920984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318359 (or 318352 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 22920984 is about 4787.5864483057. The cubic root of 22920984 is about 284.0606562236.

The spelling of 22920984 in words is "twenty-two million, nine hundred twenty thousand, nine hundred eighty-four".