22861216 has 24 divisors (see below), whose sum is σ = 51438240. Its totient is φ = 9797568.

The previous prime is 22861187. The next prime is 22861247. The reversal of 22861216 is 61216822.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 50806 + ... + 51253.

It is an arithmetic number, because the mean of its divisors is an integer number (2143260).

Almost surely, 2^22861216 is an apocalyptic number.

It is an amenable number.

22861216 is an abundant number, since it is smaller than the sum of its proper divisors (28577024).

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

22861216 is a wasteful number, since it uses less digits than its factorization.

22861216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102076 (or 102068 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 22861216 is about 4781.3403978382. The cubic root of 22861216 is about 283.8135389158.

The spelling of 22861216 in words is "twenty-two million, eight hundred sixty-one thousand, two hundred sixteen".