22447116 has 18 divisors (see below), whose sum is σ = 56741412. Its totient is φ = 7482360.

The previous prime is 22447109. The next prime is 22447121. The reversal of 22447116 is 61174422.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 22447116.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311730 + ... + 311801.

Almost surely, 2^22447116 is an apocalyptic number.

It is an amenable number.

22447116 is an abundant number, since it is smaller than the sum of its proper divisors (34294296).

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

22447116 is a wasteful number, since it uses less digits than its factorization.

22447116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623541 (or 623536 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 22447116 is about 4737.8387477836. The cubic root of 22447116 is about 282.0894540414.

The spelling of 22447116 in words is "twenty-two million, four hundred forty-seven thousand, one hundred sixteen".