22159204 has 6 divisors (see below), whose sum is σ = 38778614. Its totient is φ = 11079600.

The previous prime is 22159201. The next prime is 22159213. The reversal of 22159204 is 40295122.

It can be written as a sum of positive squares in only one way, i.e., 18472804 + 3686400 = 4298^2 + 1920^2 .

It is not an unprimeable number, because it can be changed into a prime (22159201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2769897 + ... + 2769904.

Almost surely, 2^22159204 is an apocalyptic number.

It is an amenable number.

22159204 is a deficient number, since it is larger than the sum of its proper divisors (16619410).

22159204 is a wasteful number, since it uses less digits than its factorization.

22159204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539805 (or 5539803 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 22159204 is about 4707.3563706182. The cubic root of 22159204 is about 280.8782120210.

The spelling of 22159204 in words is "twenty-two million, one hundred fifty-nine thousand, two hundred four".