22522188 has 48 divisors (see below), whose sum is σ = 57576960. Its totient is φ = 6809664.

The previous prime is 22522187. The next prime is 22522193. The reversal of 22522188 is 88122522.

It is not an unprimeable number, because it can be changed into a prime (22522187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7981 + ... + 10427.

It is an arithmetic number, because the mean of its divisors is an integer number (1199520).

Almost surely, 2^22522188 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22522188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28788480).

22522188 is an abundant number, since it is smaller than the sum of its proper divisors (35054772).

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

22522188 is a wasteful number, since it uses less digits than its factorization.

22522188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526 (or 2524 counting only the distinct ones).

The product of its digits is 5120, while the sum is 30.

The square root of 22522188 is about 4745.7547344969. The cubic root of 22522188 is about 282.4035768766.

The spelling of 22522188 in words is "twenty-two million, five hundred twenty-two thousand, one hundred eighty-eight".