22108432 has 20 divisors (see below), whose sum is σ = 45355356. Its totient is φ = 10403840.

The previous prime is 22108423. The next prime is 22108433. The reversal of 22108432 is 23480122.

It can be written as a sum of positive squares in 2 ways, for example, as 19749136 + 2359296 = 4444^2 + 1536^2 .

It is not an unprimeable number, because it can be changed into a prime (22108433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40369 + ... + 40912.

Almost surely, 2^22108432 is an apocalyptic number.

It is an amenable number.

22108432 is an abundant number, since it is smaller than the sum of its proper divisors (23246924).

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

22108432 is a wasteful number, since it uses less digits than its factorization.

22108432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81306 (or 81300 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 22108432 is about 4701.9604421986. The cubic root of 22108432 is about 280.6635284061.

Adding to 22108432 its reverse (23480122), we get a palindrome (45588554).

The spelling of 22108432 in words is "twenty-two million, one hundred eight thousand, four hundred thirty-two".