22094909 has 4 divisors (see below), whose sum is σ = 22807680. Its totient is φ = 21382140.

The previous prime is 22094899. The next prime is 22094923. The reversal of 22094909 is 90949022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22094909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22094999) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 356339 + ... + 356400.

It is an arithmetic number, because the mean of its divisors is an integer number (5701920).

Almost surely, 2^22094909 is an apocalyptic number.

It is an amenable number.

22094909 is a deficient number, since it is larger than the sum of its proper divisors (712771).

22094909 is an equidigital number, since it uses as much as digits as its factorization.

22094909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712770.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 22094909 is about 4700.5222050321. The cubic root of 22094909 is about 280.6062925213.

The spelling of 22094909 in words is "twenty-two million, ninety-four thousand, nine hundred nine".