20440242204024 has 32 divisors (see below), whose sum is σ = 54106523482320. Its totient is φ = 6412625005056.

The previous prime is 20440242203951. The next prime is 20440242204029. The reversal of 20440242204024 is 42040224204402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20440242203982 and 20440242204000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440242204029) 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, 25049316019 + ... + 25049316834.

Almost surely, 2^{20440242204024} is an apocalyptic number.

20440242204024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20440242204024 is an abundant number, since it is smaller than the sum of its proper divisors (33666281278296).

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

20440242204024 is a wasteful number, since it uses less digits than its factorization.

20440242204024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50098632879 (or 50098632875 counting only the distinct ones).

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

Adding to 20440242204024 its reverse (42040224204402), we get a palindrome (62480466408426).

The spelling of 20440242204024 in words is "twenty trillion, four hundred forty billion, two hundred forty-two million, two hundred four thousand, twenty-four".