22089609 has 24 divisors (see below), whose sum is σ = 33945600. Its totient is φ = 13802400.

The previous prime is 22089583. The next prime is 22089623. The reversal of 22089609 is 90698022.

It is not a de Polignac number, because 22089609 - 2¹² = 22085513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22089649) 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 23 ways as a sum of consecutive naturals, for example, 16632 + ... + 17910.

It is an arithmetic number, because the mean of its divisors is an integer number (1414400).

Almost surely, 2^22089609 is an apocalyptic number.

It is an amenable number.

22089609 is a deficient number, since it is larger than the sum of its proper divisors (11855991).

22089609 is a wasteful number, since it uses less digits than its factorization.

22089609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 22089609 is about 4699.9584040713. The cubic root of 22089609 is about 280.5838539846.

The spelling of 22089609 in words is "twenty-two million, eighty-nine thousand, six hundred nine".