22444400239 has 4 divisors (see below), whose sum is σ = 22448502160. Its totient is φ = 22440298320.

The previous prime is 22444400233. The next prime is 22444400249. The reversal of 22444400239 is 93200444422.

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

It is a cyclic number.

It is not a de Polignac number, because 22444400239 - 2²¹ = 22442303087 is a prime.

It is a super-2 number, since 2×22444400239² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444400233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042742 + ... + 2053699.

It is an arithmetic number, because the mean of its divisors is an integer number (5612125540).

Almost surely, 2^22444400239 is an apocalyptic number.

22444400239 is a deficient number, since it is larger than the sum of its proper divisors (4101921).

22444400239 is an equidigital number, since it uses as much as digits as its factorization.

22444400239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101920.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 22444400239 in words is "twenty-two billion, four hundred forty-four million, four hundred thousand, two hundred thirty-nine".