22668909 has 8 divisors (see below), whose sum is σ = 30639552. Its totient is φ = 14905440.

The previous prime is 22668907. The next prime is 22668917. The reversal of 22668909 is 90986622.

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

It is not a de Polignac number, because 22668909 - 2¹ = 22668907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22668907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51537 + ... + 51974.

It is an arithmetic number, because the mean of its divisors is an integer number (3829944).

Almost surely, 2^22668909 is an apocalyptic number.

It is an amenable number.

22668909 is a deficient number, since it is larger than the sum of its proper divisors (7970643).

22668909 is a wasteful number, since it uses less digits than its factorization.

22668909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103587.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 22668909 is about 4761.1877719746. The cubic root of 22668909 is about 283.0154902516.

It can be divided in two parts, 2266 and 8909, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 22668909 in words is "twenty-two million, six hundred sixty-eight thousand, nine hundred nine".