2044040040000 has 420 divisors, whose sum is σ = 8367148705344. Its totient is φ = 467208576000.

The previous prime is 2044040039983. The next prime is 2044040040011. The reversal of 2044040040000 is 400404402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (420).

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

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2114437 + ... + 2925563.

Almost surely, 2^{2044040040000} is an apocalyptic number.

2044040040000 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 2044040040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4183574352672).

2044040040000 is an abundant number, since it is smaller than the sum of its proper divisors (6323108665344).

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

2044040040000 is an equidigital number, since it uses as much as digits as its factorization.

2044040040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811172 (or 811144 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 2044040040000 its reverse (400404402), we get a palindrome (2044440444402).

The spelling of 2044040040000 in words is "two trillion, forty-four billion, forty million, forty thousand", and thus it is an eban number.