22560216 has 32 divisors (see below), whose sum is σ = 64458240. Its totient is φ = 6445728.

The previous prime is 22560211. The next prime is 22560227. The reversal of 22560216 is 61206522.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22560211) by changing a digit.

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, 66976 + ... + 67311.

It is an arithmetic number, because the mean of its divisors is an integer number (2014320).

Almost surely, 2^22560216 is an apocalyptic number.

It is an amenable number.

22560216 is an abundant number, since it is smaller than the sum of its proper divisors (41898024).

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

22560216 is a wasteful number, since it uses less digits than its factorization.

22560216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134303 (or 134299 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 22560216 is about 4749.7595728626. The cubic root of 22560216 is about 282.5624306641.

Adding to 22560216 its reverse (61206522), we get a palindrome (83766738).

The spelling of 22560216 in words is "twenty-two million, five hundred sixty thousand, two hundred sixteen".