22538132 has 12 divisors (see below), whose sum is σ = 39475380. Its totient is φ = 11259456.

The previous prime is 22538119. The next prime is 22538203. The reversal of 22538132 is 23183522.

It can be written as a sum of positive squares in 2 ways, for example, as 14776336 + 7761796 = 3844^2 + 2786^2 .

It is a congruent number.

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, 6728 + ... + 9504.

It is an arithmetic number, because the mean of its divisors is an integer number (3289615).

Almost surely, 2^22538132 is an apocalyptic number.

It is an amenable number.

22538132 is a deficient number, since it is larger than the sum of its proper divisors (16937248).

22538132 is a wasteful number, since it uses less digits than its factorization.

22538132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810 (or 4808 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 22538132 is about 4747.4342544157. The cubic root of 22538132 is about 282.4702012582.

The spelling of 22538132 in words is "twenty-two million, five hundred thirty-eight thousand, one hundred thirty-two".