22727224 has 16 divisors (see below), whose sum is σ = 45891720. Its totient is φ = 10489440.

The previous prime is 22727219. The next prime is 22727231. The reversal of 22727224 is 42272722.

It is a junction number, because it is equal to n+sod(n) for n = 22727192 and 22727201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109162 + ... + 109369.

Almost surely, 2^22727224 is an apocalyptic number.

It is an amenable number.

22727224 is an abundant number, since it is smaller than the sum of its proper divisors (23164496).

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

22727224 is a wasteful number, since it uses less digits than its factorization.

22727224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218550 (or 218546 counting only the distinct ones).

The product of its digits is 6272, while the sum is 28.

The square root of 22727224 is about 4767.3078356657. The cubic root of 22727224 is about 283.2579650360.

Adding to 22727224 its reverse (42272722), we get a palindrome (64999946).

The spelling of 22727224 in words is "twenty-two million, seven hundred twenty-seven thousand, two hundred twenty-four".