22265909 has 8 divisors (see below), whose sum is σ = 23582400. Its totient is φ = 20978496.

The previous prime is 22265861. The next prime is 22265917. The reversal of 22265909 is 90956222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22265909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22265209) 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 7 ways as a sum of consecutive naturals, for example, 5684 + ... + 8765.

It is an arithmetic number, because the mean of its divisors is an integer number (2947800).

Almost surely, 2^22265909 is an apocalyptic number.

It is an amenable number.

22265909 is a deficient number, since it is larger than the sum of its proper divisors (1316491).

22265909 is a wasteful number, since it uses less digits than its factorization.

22265909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14539.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 22265909 is about 4718.6766153234. The cubic root of 22265909 is about 281.3283354470.

The spelling of 22265909 in words is "twenty-two million, two hundred sixty-five thousand, nine hundred nine".