22444373138 has 32 divisors (see below), whose sum is σ = 38380953600. Its totient is φ = 9752697360.

The previous prime is 22444373113. The next prime is 22444373261. The reversal of 22444373138 is 83137344422.

It is a junction number, because it is equal to n+sod(n) for n = 22444373095 and 22444373104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207938 + ... + 296861.

It is an arithmetic number, because the mean of its divisors is an integer number (1199404800).

Almost surely, 2^22444373138 is an apocalyptic number.

22444373138 is a deficient number, since it is larger than the sum of its proper divisors (15936580462).

22444373138 is a wasteful number, since it uses less digits than its factorization.

22444373138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504902.

The product of its digits is 387072, while the sum is 41.

The spelling of 22444373138 in words is "twenty-two billion, four hundred forty-four million, three hundred seventy-three thousand, one hundred thirty-eight".