22900205 has 4 divisors (see below), whose sum is σ = 27480252. Its totient is φ = 18320160.

The previous prime is 22900159. The next prime is 22900211. The reversal of 22900205 is 50200922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18139081 + 4761124 = 4259^2 + 2182^2 .

It is not a de Polignac number, because 22900205 - 2²⁰ = 21851629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2290016 + ... + 2290025.

It is an arithmetic number, because the mean of its divisors is an integer number (6870063).

Almost surely, 2^22900205 is an apocalyptic number.

It is an amenable number.

22900205 is a deficient number, since it is larger than the sum of its proper divisors (4580047).

22900205 is an equidigital number, since it uses as much as digits as its factorization.

22900205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580046.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 22900205 is about 4785.4158648962. The cubic root of 22900205 is about 283.9747919502.

The spelling of 22900205 in words is "twenty-two million, nine hundred thousand, two hundred five".