22557332 has 48 divisors (see below), whose sum is σ = 48048000. Its totient is φ = 9051264.

The previous prime is 22557329. The next prime is 22557341. The reversal of 22557332 is 23375522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22557295 and 22557304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57794 + ... + 58182.

It is an arithmetic number, because the mean of its divisors is an integer number (1001000).

Almost surely, 2^22557332 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 22557332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24024000).

22557332 is an abundant number, since it is smaller than the sum of its proper divisors (25490668).

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

22557332 is a wasteful number, since it uses less digits than its factorization.

22557332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 526 counting only the distinct ones).

The product of its digits is 12600, while the sum is 29.

The square root of 22557332 is about 4749.4559688453. The cubic root of 22557332 is about 282.5503896331.

The spelling of 22557332 in words is "twenty-two million, five hundred fifty-seven thousand, three hundred thirty-two".