20444024444242 has 24 divisors (see below), whose sum is σ = 35857569395196. Its totient is φ = 8716327216128.

The previous prime is 20444024444201. The next prime is 20444024444251. The reversal of 20444024444242 is 24244442044402.

It can be written as a sum of positive squares in 2 ways, for example, as 16757159789601 + 3686864654641 = 4093551^2 + 1920121^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20444024444195 and 20444024444204.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540427963 + ... + 540465790.

Almost surely, 2^{20444024444242} is an apocalyptic number.

20444024444242 is a deficient number, since it is larger than the sum of its proper divisors (15413544950954).

20444024444242 is a wasteful number, since it uses less digits than its factorization.

20444024444242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080893962 (or 1080893955 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 20444024444242 its reverse (24244442044402), we get a palindrome (44688466488644).

The spelling of 20444024444242 in words is "twenty trillion, four hundred forty-four billion, twenty-four million, four hundred forty-four thousand, two hundred forty-two".