22206986 has 16 divisors (see below), whose sum is σ = 33985224. Its totient is φ = 10881024.

The previous prime is 22206973. The next prime is 22207019. The reversal of 22206986 is 68960222.

It can be written as a sum of positive squares in 4 ways, for example, as 4305625 + 17901361 = 2075^2 + 4231^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21416 + ... + 22428.

Almost surely, 2^22206986 is an apocalyptic number.

22206986 is a deficient number, since it is larger than the sum of its proper divisors (11778238).

22206986 is a wasteful number, since it uses less digits than its factorization.

22206986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 22206986 is about 4712.4288854051. The cubic root of 22206986 is about 281.0799534393.

The spelling of 22206986 in words is "twenty-two million, two hundred six thousand, nine hundred eighty-six".