22868920 has 32 divisors (see below), whose sum is σ = 52113600. Its totient is φ = 9030528.

The previous prime is 22868903. The next prime is 22868941. The reversal of 22868920 is 2986822.

It is a self number, because there is not a number n which added to its sum of digits gives 22868920.

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, 459 + ... + 6778.

It is an arithmetic number, because the mean of its divisors is an integer number (1628550).

Almost surely, 2^22868920 is an apocalyptic number.

22868920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22868920 is an abundant number, since it is smaller than the sum of its proper divisors (29244680).

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

22868920 is a wasteful number, since it uses less digits than its factorization.

22868920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7327 (or 7323 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 22868920 is about 4782.1459618042. The cubic root of 22868920 is about 283.8454161052.

The spelling of 22868920 in words is "twenty-two million, eight hundred sixty-eight thousand, nine hundred twenty".