20440042024444 has 24 divisors (see below), whose sum is σ = 40902657360768. Its totient is φ = 8755180872240.

The previous prime is 20440042024433. The next prime is 20440042024459. The reversal of 20440042024444 is 44442024004402.

It is a super-2 number, since 2×20440042024444² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201495814 + ... + 201597229.

It is an arithmetic number, because the mean of its divisors is an integer number (1704277390032).

Almost surely, 2^{20440042024444} is an apocalyptic number.

It is an amenable number.

20440042024444 is an abundant number, since it is smaller than the sum of its proper divisors (20462615336324).

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

20440042024444 is a wasteful number, since it uses less digits than its factorization.

20440042024444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403094865 (or 403094863 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 20440042024444 its reverse (44442024004402), we get a palindrome (64882066028846).

The spelling of 20440042024444 in words is "twenty trillion, four hundred forty billion, forty-two million, twenty-four thousand, four hundred forty-four".