22976720 has 40 divisors (see below), whose sum is σ = 57532776. Its totient is φ = 8483328.

The previous prime is 22976711. The next prime is 22976731. The reversal of 22976720 is 2767922.

It can be written as a sum of positive squares in 4 ways, for example, as 3013696 + 19963024 = 1736^2 + 4468^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10007 + ... + 12086.

Almost surely, 2^22976720 is an apocalyptic number.

22976720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22976720 is an abundant number, since it is smaller than the sum of its proper divisors (34556056).

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

22976720 is a wasteful number, since it uses less digits than its factorization.

22976720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22119 (or 22113 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 22976720 is about 4793.4038010583. The cubic root of 22976720 is about 284.2907159954.

The spelling of 22976720 in words is "twenty-two million, nine hundred seventy-six thousand, seven hundred twenty".