22200008 has 8 divisors (see below), whose sum is σ = 41625030. Its totient is φ = 11100000.

The previous prime is 22200001. The next prime is 22200023. The reversal of 22200008 is 80000222.

It can be written as a sum of positive squares in only one way, i.e., 22108804 + 91204 = 4702^2 + 302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22199965 and 22200001.

It is not an unprimeable number, because it can be changed into a prime (22200001) 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 as a sum of consecutive naturals, namely, 1387493 + ... + 1387508.

Almost surely, 2^22200008 is an apocalyptic number.

It is an amenable number.

22200008 is a deficient number, since it is larger than the sum of its proper divisors (19425022).

22200008 is a wasteful number, since it uses less digits than its factorization.

22200008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775007 (or 2775003 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 22200008 is about 4711.6884447085. The cubic root of 22200008 is about 281.0505095309.

The spelling of 22200008 in words is "twenty-two million, two hundred thousand, eight".