22808032 has 48 divisors (see below), whose sum is σ = 48898080. Its totient is φ = 10409472.

The previous prime is 22808029. The next prime is 22808041. The reversal of 22808032 is 23080822.

It is a junction number, because it is equal to n+sod(n) for n = 22807988 and 22808006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45093 + ... + 45595.

It is an arithmetic number, because the mean of its divisors is an integer number (1018710).

Almost surely, 2^22808032 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 22808032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24449040).

22808032 is an abundant number, since it is smaller than the sum of its proper divisors (26090048).

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

22808032 is a wasteful number, since it uses less digits than its factorization.

22808032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 22808032 is about 4775.7755391140. The cubic root of 22808032 is about 283.5932814648.

Adding to 22808032 its reverse (23080822), we get a palindrome (45888854).

The spelling of 22808032 in words is "twenty-two million, eight hundred eight thousand, thirty-two".