22815632 has 80 divisors (see below), whose sum is σ = 55924992. Its totient is φ = 8785920.

The previous prime is 22815629. The next prime is 22815673. The reversal of 22815632 is 23651822.

22815632 is a Rhonda number in base 10.

Its product of digits (5760) is a multiple of the sum of its prime factors (576).

It is a junction number, because it is equal to n+sod(n) for n = 22815595 and 22815604.

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, 43532 + ... + 44052.

Almost surely, 2^22815632 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 22815632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27962496).

22815632 is an abundant number, since it is smaller than the sum of its proper divisors (33109360).

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

22815632 is a wasteful number, since it uses less digits than its factorization.

22815632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 570 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 22815632 is about 4776.5711551279. The cubic root of 22815632 is about 283.6247772348.

The spelling of 22815632 in words is "twenty-two million, eight hundred fifteen thousand, six hundred thirty-two".