22452216 has 32 divisors (see below), whose sum is σ = 56284800. Its totient is φ = 7463520.

The previous prime is 22452197. The next prime is 22452233. The reversal of 22452216 is 61225422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 9471 + ... + 11601.

It is an arithmetic number, because the mean of its divisors is an integer number (1758900).

Almost surely, 2^22452216 is an apocalyptic number.

It is an amenable number.

22452216 is an abundant number, since it is smaller than the sum of its proper divisors (33832584).

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

22452216 is a wasteful number, since it uses less digits than its factorization.

22452216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579 (or 2575 counting only the distinct ones).

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

The square root of 22452216 is about 4738.3769373067. The cubic root of 22452216 is about 282.1108160622.

Adding to 22452216 its reverse (61225422), we get a palindrome (83677638).

The spelling of 22452216 in words is "twenty-two million, four hundred fifty-two thousand, two hundred sixteen".