22501488 has 20 divisors (see below), whose sum is σ = 58128968. Its totient is φ = 7500480.

The previous prime is 22501463. The next prime is 22501511. The reversal of 22501488 is 88410522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234343 + ... + 234438.

Almost surely, 2^22501488 is an apocalyptic number.

It is an amenable number.

22501488 is an abundant number, since it is smaller than the sum of its proper divisors (35627480).

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

22501488 is a wasteful number, since it uses less digits than its factorization.

22501488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468792 (or 468786 counting only the distinct ones).

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

The square root of 22501488 is about 4743.5733366314. The cubic root of 22501488 is about 282.3170319121.

The spelling of 22501488 in words is "twenty-two million, five hundred one thousand, four hundred eighty-eight".