22810809 has 16 divisors (see below), whose sum is σ = 35251200. Its totient is φ = 12850320.

The previous prime is 22810783. The next prime is 22810813. The reversal of 22810809 is 90801822.

It is not a de Polignac number, because 22810809 - 2⁸ = 22810553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22810859) 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 15 ways as a sum of consecutive naturals, for example, 6159 + ... + 9140.

It is an arithmetic number, because the mean of its divisors is an integer number (2203200).

Almost surely, 2^22810809 is an apocalyptic number.

It is an amenable number.

22810809 is a deficient number, since it is larger than the sum of its proper divisors (12440391).

22810809 is a wasteful number, since it uses less digits than its factorization.

22810809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15380.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 22810809 is about 4776.0662683845. The cubic root of 22810809 is about 283.6047906644.

The spelling of 22810809 in words is "twenty-two million, eight hundred ten thousand, eight hundred nine".