22199964 has 24 divisors (see below), whose sum is σ = 53586960. Its totient is φ = 7144704.

The previous prime is 22199959. The next prime is 22199971. The reversal of 22199964 is 46999122.

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, 31549 + ... + 32244.

It is an arithmetic number, because the mean of its divisors is an integer number (2232790).

Almost surely, 2^22199964 is an apocalyptic number.

It is an amenable number.

22199964 is an abundant number, since it is smaller than the sum of its proper divisors (31386996).

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

22199964 is a wasteful number, since it uses less digits than its factorization.

22199964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63829 (or 63827 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 22199964 is about 4711.6837754671. The cubic root of 22199964 is about 281.0503238518.

The spelling of 22199964 in words is "twenty-two million, one hundred ninety-nine thousand, nine hundred sixty-four".