22522224 has 40 divisors (see below), whose sum is σ = 58389120. Its totient is φ = 7480768.

The previous prime is 22522219. The next prime is 22522271. The reversal of 22522224 is 42222522.

It is a self number, because there is not a number n which added to its sum of digits gives 22522224.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16579 + ... + 17885.

It is an arithmetic number, because the mean of its divisors is an integer number (1459728).

Almost surely, 2^22522224 is an apocalyptic number.

22522224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22522224 is an abundant number, since it is smaller than the sum of its proper divisors (35866896).

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

22522224 is a wasteful number, since it uses less digits than its factorization.

22522224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677 (or 1671 counting only the distinct ones).

The product of its digits is 1280, while the sum is 21.

The square root of 22522224 is about 4745.7585273589. The cubic root of 22522224 is about 282.4037273434.

Adding to 22522224 its reverse (42222522), we get a palindrome (64744746).

The spelling of 22522224 in words is "twenty-two million, five hundred twenty-two thousand, two hundred twenty-four".