22432912 has 40 divisors (see below), whose sum is σ = 46354176. Its totient is φ = 10492416.

The previous prime is 22432859. The next prime is 22432913. The reversal of 22432912 is 21923422.

It is not an unprimeable number, because it can be changed into a prime (22432913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16648 + ... + 17944.

Almost surely, 2^22432912 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 22432912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23177088).

22432912 is an abundant number, since it is smaller than the sum of its proper divisors (23921264).

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

22432912 is a wasteful number, since it uses less digits than its factorization.

22432912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375 (or 1369 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 22432912 is about 4736.3395148574. The cubic root of 22432912 is about 282.0299416593.

The spelling of 22432912 in words is "twenty-two million, four hundred thirty-two thousand, nine hundred twelve".