22345805 has 16 divisors (see below), whose sum is σ = 29203200. Its totient is φ = 16349760.

The previous prime is 22345789. The next prime is 22345879. The reversal of 22345805 is 50854322.

It is not a de Polignac number, because 22345805 - 2⁴ = 22345789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301 + ... + 6810.

It is an arithmetic number, because the mean of its divisors is an integer number (1825200).

Almost surely, 2^22345805 is an apocalyptic number.

It is an amenable number.

22345805 is a deficient number, since it is larger than the sum of its proper divisors (6857395).

22345805 is a wasteful number, since it uses less digits than its factorization.

22345805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8164.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 22345805 is about 4727.1349673983. The cubic root of 22345805 is about 281.6644273871.

The spelling of 22345805 in words is "twenty-two million, three hundred forty-five thousand, eight hundred five".