22344402013 has 4 divisors (see below), whose sum is σ = 23658778620. Its totient is φ = 21030025408.

The previous prime is 22344401987. The next prime is 22344402037. The reversal of 22344402013 is 31020444322.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7625131684 + 14719270329 = 87322^2 + 121323^2 .

It is a cyclic number.

It is not a de Polignac number, because 22344402013 - 2²¹ = 22342304861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22344402413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657188278 + ... + 657188311.

It is an arithmetic number, because the mean of its divisors is an integer number (5914694655).

Almost surely, 2^22344402013 is an apocalyptic number.

It is an amenable number.

22344402013 is a deficient number, since it is larger than the sum of its proper divisors (1314376607).

22344402013 is a wasteful number, since it uses less digits than its factorization.

22344402013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314376606.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 22344402013 its reverse (31020444322), we get a palindrome (53364846335).

The spelling of 22344402013 in words is "twenty-two billion, three hundred forty-four million, four hundred two thousand, thirteen".