22488732 has 96 divisors (see below), whose sum is σ = 67415040. Its totient is φ = 6350400.

The previous prime is 22488727. The next prime is 22488757. The reversal of 22488732 is 23788422.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 114058 + ... + 114254.

It is an arithmetic number, because the mean of its divisors is an integer number (702240).

Almost surely, 2^22488732 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 22488732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33707520).

22488732 is an abundant number, since it is smaller than the sum of its proper divisors (44926308).

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

22488732 is a wasteful number, since it uses less digits than its factorization.

22488732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 360 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 22488732 is about 4742.2285900197. The cubic root of 22488732 is about 282.2636737107.

It can be divided in two parts, 22488 and 732, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22488732 in words is "twenty-two million, four hundred eighty-eight thousand, seven hundred thirty-two".