22407990305 has 4 divisors (see below), whose sum is σ = 26889588372. Its totient is φ = 17926392240.

The previous prime is 22407990247. The next prime is 22407990379. The reversal of 22407990305 is 50309970422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50309970422 = 2 ⋅25154985211.

It can be written as a sum of positive squares in 2 ways, for example, as 9636956224 + 12771034081 = 98168^2 + 113009^2 .

It is not a de Polignac number, because 22407990305 - 2²⁰ = 22406941729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240799026 + ... + 2240799035.

It is an arithmetic number, because the mean of its divisors is an integer number (6722397093).

Almost surely, 2^22407990305 is an apocalyptic number.

It is an amenable number.

22407990305 is a deficient number, since it is larger than the sum of its proper divisors (4481598067).

22407990305 is an equidigital number, since it uses as much as digits as its factorization.

22407990305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481598066.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 22407990305 in words is "twenty-two billion, four hundred seven million, nine hundred ninety thousand, three hundred five".