20442040112 has 80 divisors (see below), whose sum is σ = 44963892960. Its totient is φ = 8925106176.

The previous prime is 20442040051. The next prime is 20442040117. The reversal of 20442040112 is 21104024402.

It is not an unprimeable number, because it can be changed into a prime (20442040117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2988248 + ... + 2995080.

It is an arithmetic number, because the mean of its divisors is an integer number (562048662).

Almost surely, 2^20442040112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20442040112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22481946480).

20442040112 is an abundant number, since it is smaller than the sum of its proper divisors (24521852848).

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

20442040112 is a wasteful number, since it uses less digits than its factorization.

20442040112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7630 (or 7624 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20442040112 its reverse (21104024402), we get a palindrome (41546064514).

The spelling of 20442040112 in words is "twenty billion, four hundred forty-two million, forty thousand, one hundred twelve".