22088988 has 36 divisors (see below), whose sum is σ = 57640128. Its totient is φ = 7125120.

The previous prime is 22088987. The next prime is 22089007. The reversal of 22088988 is 88988022.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×22088988³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22088987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8781 + ... + 11012.

Almost surely, 2^22088988 is an apocalyptic number.

It is an amenable number.

22088988 is an abundant number, since it is smaller than the sum of its proper divisors (35551140).

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

22088988 is a wasteful number, since it uses less digits than its factorization.

22088988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19834 (or 19829 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 22088988 is about 4699.8923391925. The cubic root of 22088988 is about 280.5812246306.

The spelling of 22088988 in words is "twenty-two million, eighty-eight thousand, nine hundred eighty-eight".