22536940 has 12 divisors (see below), whose sum is σ = 47327616. Its totient is φ = 9014768.

The previous prime is 22536937. The next prime is 22536971. The reversal of 22536940 is 4963522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563404 + ... + 563443.

It is an arithmetic number, because the mean of its divisors is an integer number (3943968).

Almost surely, 2^22536940 is an apocalyptic number.

22536940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22536940 is an abundant number, since it is smaller than the sum of its proper divisors (24790676).

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

22536940 is a wasteful number, since it uses less digits than its factorization.

22536940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126856 (or 1126854 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 22536940 is about 4747.3087112595. The cubic root of 22536940 is about 282.4652213953.

The spelling of 22536940 in words is "twenty-two million, five hundred thirty-six thousand, nine hundred forty".