22264909 has 2 divisors, whose sum is σ = 22264910. Its totient is φ = 22264908.

The previous prime is 22264901. The next prime is 22264919. The reversal of 22264909 is 90946222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15093225 + 7171684 = 3885^2 + 2678^2 .

It is a cyclic number.

It is not a de Polignac number, because 22264909 - 2³ = 22264901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22264901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11132454 + 11132455.

It is an arithmetic number, because the mean of its divisors is an integer number (11132455).

Almost surely, 2^22264909 is an apocalyptic number.

It is an amenable number.

22264909 is a deficient number, since it is larger than the sum of its proper divisors (1).

22264909 is an equidigital number, since it uses as much as digits as its factorization.

22264909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 22264909 is about 4718.5706522209. The cubic root of 22264909 is about 281.3241237386.

The spelling of 22264909 in words is "twenty-two million, two hundred sixty-four thousand, nine hundred nine".