20040044112 has 200 divisors, whose sum is σ = 64222041312. Its totient is φ = 5981817600.

The previous prime is 20040044111. The next prime is 20040044117. The reversal of 20040044112 is 21144004002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040044111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 944662 + ... + 965642.

Almost surely, 2^20040044112 is an apocalyptic number.

20040044112 is a gapful number since it is divisible by the number (22) 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 20040044112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32111020656).

20040044112 is an abundant number, since it is smaller than the sum of its proper divisors (44181997200).

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

20040044112 is a wasteful number, since it uses less digits than its factorization.

20040044112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21079 (or 21064 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20040044112 its reverse (21144004002), we get a palindrome (41184048114).

The spelling of 20040044112 in words is "twenty billion, forty million, forty-four thousand, one hundred twelve".