20444044422 has 24 divisors (see below), whose sum is σ = 43153361496. Its totient is φ = 6456013344.

The previous prime is 20444044333. The next prime is 20444044429. The reversal of 20444044422 is 22444044402.

It is a self number, because there is not a number n which added to its sum of digits gives 20444044422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444044429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4717143 + ... + 4721474.

It is an arithmetic number, because the mean of its divisors is an integer number (1798056729).

Almost surely, 2^20444044422 is an apocalyptic number.

20444044422 is an abundant number, since it is smaller than the sum of its proper divisors (22709317074).

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

20444044422 is a wasteful number, since it uses less digits than its factorization.

20444044422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9438660 (or 9438641 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 20444044422 its reverse (22444044402), we get a palindrome (42888088824).

The spelling of 20444044422 in words is "twenty billion, four hundred forty-four million, forty-four thousand, four hundred twenty-two".