22087488 has 112 divisors (see below), whose sum is σ = 63422784. Its totient is φ = 6758400.

The previous prime is 22087487. The next prime is 22087493. The reversal of 22087488 is 88478022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22087487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218638 + ... + 218738.

Almost surely, 2^22087488 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 22087488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31711392).

22087488 is an abundant number, since it is smaller than the sum of its proper divisors (41335296).

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

22087488 is a wasteful number, since it uses less digits than its factorization.

22087488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 22087488 is about 4699.7327583598. The cubic root of 22087488 is about 280.5748733306.

The spelling of 22087488 in words is "twenty-two million, eighty-seven thousand, four hundred eighty-eight".