22205916 has 36 divisors (see below), whose sum is σ = 56656600. Its totient is φ = 7332768.

The previous prime is 22205899. The next prime is 22205929. The reversal of 22205916 is 61950222.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22205916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1095 + ... + 6753.

Almost surely, 2^22205916 is an apocalyptic number.

It is an amenable number.

22205916 is an abundant number, since it is smaller than the sum of its proper divisors (34450684).

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

22205916 is a wasteful number, since it uses less digits than its factorization.

22205916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778 (or 5773 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 22205916 is about 4712.3153544728. The cubic root of 22205916 is about 281.0754389383.

The spelling of 22205916 in words is "twenty-two million, two hundred five thousand, nine hundred sixteen".