22166204 has 24 divisors (see below), whose sum is σ = 40642560. Its totient is φ = 10558064.

The previous prime is 22166201. The next prime is 22166233. The reversal of 22166204 is 40266122.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 22166204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22166201) 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, 43817 + ... + 44319.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^22166204 is an apocalyptic number.

It is an amenable number.

22166204 is a deficient number, since it is larger than the sum of its proper divisors (18476356).

22166204 is a wasteful number, since it uses less digits than its factorization.

22166204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 22166204 is about 4708.0998290181. The cubic root of 22166204 is about 280.9077849919.

The spelling of 22166204 in words is "twenty-two million, one hundred sixty-six thousand, two hundred four".