22373920 has 24 divisors (see below), whose sum is σ = 52858764. Its totient is φ = 8949504.

The previous prime is 22373903. The next prime is 22373929. The reversal of 22373920 is 2937322.

It can be written as a sum of positive squares in 2 ways, for example, as 21790224 + 583696 = 4668^2 + 764^2 .

It is not an unprimeable number, because it can be changed into a prime (22373929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69759 + ... + 70078.

Almost surely, 2^22373920 is an apocalyptic number.

22373920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22373920 is an abundant number, since it is smaller than the sum of its proper divisors (30484844).

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

22373920 is a wasteful number, since it uses less digits than its factorization.

22373920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139852 (or 139844 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 22373920 is about 4730.1078211812. The cubic root of 22373920 is about 281.7825058740.

The spelling of 22373920 in words is "twenty-two million, three hundred seventy-three thousand, nine hundred twenty".