22124232 has 64 divisors (see below), whose sum is σ = 66192000. Its totient is φ = 6806592.

The previous prime is 22124209. The next prime is 22124251. The reversal of 22124232 is 23242122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132 + ... + 6747.

It is an arithmetic number, because the mean of its divisors is an integer number (1034250).

Almost surely, 2^22124232 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 22124232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33096000).

22124232 is an abundant number, since it is smaller than the sum of its proper divisors (44067768).

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

22124232 is a wasteful number, since it uses less digits than its factorization.

22124232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7907 (or 7897 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 22124232 is about 4703.6402923693. The cubic root of 22124232 is about 280.7303721000.

Adding to 22124232 its reverse (23242122), we get a palindrome (45366354).

The spelling of 22124232 in words is "twenty-two million, one hundred twenty-four thousand, two hundred thirty-two".