22422899 has 4 divisors (see below), whose sum is σ = 22730136. Its totient is φ = 22115664.

The previous prime is 22422893. The next prime is 22422919. The reversal of 22422899 is 99822422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22422899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22422893) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 153509 + ... + 153654.

It is an arithmetic number, because the mean of its divisors is an integer number (5682534).

Almost surely, 2^22422899 is an apocalyptic number.

22422899 is a deficient number, since it is larger than the sum of its proper divisors (307237).

22422899 is an equidigital number, since it uses as much as digits as its factorization.

22422899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307236.

The product of its digits is 41472, while the sum is 38.

The square root of 22422899 is about 4735.2823569456. The cubic root of 22422899 is about 281.9879737674.

The spelling of 22422899 in words is "twenty-two million, four hundred twenty-two thousand, eight hundred ninety-nine".