20440033442000 has 160 divisors (see below), whose sum is σ = 50203290533760. Its totient is φ = 8047301222400.

The previous prime is 20440033441981. The next prime is 20440033442093. The reversal of 20440033442000 is 24433004402.

It is a super-2 number, since 2×20440033442000² (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 31 ways as a sum of consecutive naturals, for example, 163015331 + ... + 163140669.

It is an arithmetic number, because the mean of its divisors is an integer number (313770565836).

Almost surely, 2^{20440033442000} is an apocalyptic number.

20440033442000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20440033442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25101645266880).

20440033442000 is an abundant number, since it is smaller than the sum of its proper divisors (29763257091760).

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

20440033442000 is a wasteful number, since it uses less digits than its factorization.

20440033442000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126646 (or 126630 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 20440033442000 its reverse (24433004402), we get a palindrome (20464466446402).

The spelling of 20440033442000 in words is "twenty trillion, four hundred forty billion, thirty-three million, four hundred forty-two thousand".