22537488 has 40 divisors (see below), whose sum is σ = 58933728. Its totient is φ = 7420672.

The previous prime is 22537481. The next prime is 22537499. The reversal of 22537488 is 88473522.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22537481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156 + ... + 6812.

Almost surely, 2^22537488 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 22537488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29466864).

22537488 is an abundant number, since it is smaller than the sum of its proper divisors (36396240).

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

22537488 is a wasteful number, since it uses less digits than its factorization.

22537488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751 (or 5745 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 22537488 is about 4747.3664278208. The cubic root of 22537488 is about 282.4675108172.

The spelling of 22537488 in words is "twenty-two million, five hundred thirty-seven thousand, four hundred eighty-eight".