22473940 has 24 divisors (see below), whose sum is σ = 47416320. Its totient is φ = 8947488.

The previous prime is 22473901. The next prime is 22473953. The reversal of 22473940 is 4937422.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 1941 + ... + 6979.

It is an arithmetic number, because the mean of its divisors is an integer number (1975680).

Almost surely, 2^22473940 is an apocalyptic number.

22473940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22473940 is an abundant number, since it is smaller than the sum of its proper divisors (24942380).

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

22473940 is a wasteful number, since it uses less digits than its factorization.

22473940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271 (or 5269 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 22473940 is about 4740.6687291984. The cubic root of 22473940 is about 282.2017736738.

The spelling of 22473940 in words is "twenty-two million, four hundred seventy-three thousand, nine hundred forty".