22442512 has 20 divisors (see below), whose sum is σ = 44886016. Its totient is φ = 10859040.

The previous prime is 22442473. The next prime is 22442513. The reversal of 22442512 is 21524422.

22442512 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22442513) 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, 22128 + ... + 23119.

Almost surely, 2^22442512 is an apocalyptic number.

It is an amenable number.

22442512 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.

22442512 is a wasteful number, since it uses less digits than its factorization.

22442512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45286 (or 45280 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 22442512 is about 4737.3528473188. The cubic root of 22442512 is about 282.0701668028.

Adding to 22442512 its reverse (21524422), we get a palindrome (43966934).

The spelling of 22442512 in words is "twenty-two million, four hundred forty-two thousand, five hundred twelve".