22657932 has 72 divisors (see below), whose sum is σ = 64668240. Its totient is φ = 6625920.

The previous prime is 22657927. The next prime is 22657933. The reversal of 22657932 is 23975622.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22657933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10498 + ... + 12470.

It is an arithmetic number, because the mean of its divisors is an integer number (898170).

Almost surely, 2^22657932 is an apocalyptic number.

22657932 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22657932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32334120).

22657932 is an abundant number, since it is smaller than the sum of its proper divisors (42010308).

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

22657932 is a wasteful number, since it uses less digits than its factorization.

22657932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2018 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 22657932 is about 4760.0348738218. The cubic root of 22657932 is about 282.9698012035.

The spelling of 22657932 in words is "twenty-two million, six hundred fifty-seven thousand, nine hundred thirty-two".