22538088 has 40 divisors (see below), whose sum is σ = 63129330. Its totient is φ = 7512480.

The previous prime is 22538081. The next prime is 22538111. The reversal of 22538088 is 88083522.

It can be written as a sum of positive squares in only one way, i.e., 20412324 + 2125764 = 4518^2 + 1458^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22538081) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16743 + ... + 18038.

Almost surely, 2^22538088 is an apocalyptic number.

It is an amenable number.

22538088 is an abundant number, since it is smaller than the sum of its proper divisors (40591242).

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

22538088 is a wasteful number, since it uses less digits than its factorization.

22538088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34799 (or 34786 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 22538088 is about 4747.4296203314. The cubic root of 22538088 is about 282.4700174408.

The spelling of 22538088 in words is "twenty-two million, five hundred thirty-eight thousand, eighty-eight".