22242516 has 24 divisors (see below), whose sum is σ = 52612224. Its totient is φ = 7312320.

The previous prime is 22242503. The next prime is 22242533. The reversal of 22242516 is 61524222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11820 + ... + 13571.

It is an arithmetic number, because the mean of its divisors is an integer number (2192176).

Almost surely, 2^22242516 is an apocalyptic number.

It is an amenable number.

22242516 is an abundant number, since it is smaller than the sum of its proper divisors (30369708).

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

22242516 is a wasteful number, since it uses less digits than its factorization.

22242516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25471 (or 25469 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 22242516 is about 4716.1971968950. The cubic root of 22242516 is about 281.2297779041.

Adding to 22242516 its reverse (61524222), we get a palindrome (83766738).

The spelling of 22242516 in words is "twenty-two million, two hundred forty-two thousand, five hundred sixteen".