22438405194 has 16 divisors (see below), whose sum is σ = 44893606368. Its totient is φ = 7476669072.

The previous prime is 22438405193. The next prime is 22438405237. The reversal of 22438405194 is 49150483422.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22438405193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682432 + ... + 714555.

It is an arithmetic number, because the mean of its divisors is an integer number (2805850398).

Almost surely, 2^22438405194 is an apocalyptic number.

22438405194 is an abundant number, since it is smaller than the sum of its proper divisors (22455201174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22438405194 is a wasteful number, since it uses less digits than its factorization.

22438405194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399669.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 22438405194 in words is "twenty-two billion, four hundred thirty-eight million, four hundred five thousand, one hundred ninety-four".