22124732 has 12 divisors (see below), whose sum is σ = 44249520. Its totient is φ = 9482016.

The previous prime is 22124719. The next prime is 22124737. The reversal of 22124732 is 23742122.

It is a happy number.

22124732 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 22124698 and 22124707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22124737) 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, 395057 + ... + 395112.

It is an arithmetic number, because the mean of its divisors is an integer number (3687460).

Almost surely, 2^22124732 is an apocalyptic number.

It is an amenable number.

22124732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22124732 is a wasteful number, since it uses less digits than its factorization.

22124732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790180 (or 790178 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 22124732 is about 4703.6934423918. The cubic root of 22124732 is about 280.7324868872.

Adding to 22124732 its reverse (23742122), we get a palindrome (45866854).

The spelling of 22124732 in words is "twenty-two million, one hundred twenty-four thousand, seven hundred thirty-two".