22036209 has 16 divisors (see below), whose sum is σ = 31752000. Its totient is φ = 13513536.

The previous prime is 22036193. The next prime is 22036213. The reversal of 22036209 is 90263022.

It is not a de Polignac number, because 22036209 - 2⁴ = 22036193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22036249) 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 15 ways as a sum of consecutive naturals, for example, 12802 + ... + 14420.

It is an arithmetic number, because the mean of its divisors is an integer number (1984500).

Almost surely, 2^22036209 is an apocalyptic number.

It is an amenable number.

22036209 is a deficient number, since it is larger than the sum of its proper divisors (9715791).

22036209 is a wasteful number, since it uses less digits than its factorization.

22036209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 22036209 is about 4694.2740652842. The cubic root of 22036209 is about 280.3575746267.

The spelling of 22036209 in words is "twenty-two million, thirty-six thousand, two hundred nine".