22872920 has 32 divisors (see below), whose sum is σ = 58816800. Its totient is φ = 7842048.

The previous prime is 22872893. The next prime is 22872923. The reversal of 22872920 is 2927822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22872923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40565 + ... + 41124.

It is an arithmetic number, because the mean of its divisors is an integer number (1838025).

Almost surely, 2^22872920 is an apocalyptic number.

22872920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22872920 is an abundant number, since it is smaller than the sum of its proper divisors (35943880).

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

22872920 is a wasteful number, since it uses less digits than its factorization.

22872920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81707 (or 81703 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 22872920 is about 4782.5641658006. The cubic root of 22872920 is about 283.8619642628.

The spelling of 22872920 in words is "twenty-two million, eight hundred seventy-two thousand, nine hundred twenty".