2044004040400 has 120 divisors (see below), whose sum is σ = 5615281126784. Its totient is φ = 700423027200.

The previous prime is 2044004040389. The next prime is 2044004040517. The reversal of 2044004040400 is 40404004402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5014669 + ... + 5406931.

Almost surely, 2^{2044004040400} is an apocalyptic number.

2044004040400 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 2044004040400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2807640563392).

2044004040400 is an abundant number, since it is smaller than the sum of its proper divisors (3571277086384).

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

2044004040400 is a wasteful number, since it uses less digits than its factorization.

2044004040400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394149 (or 394138 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 2044004040400 its reverse (40404004402), we get a palindrome (2084408044802).

The spelling of 2044004040400 in words is "two trillion, forty-four billion, four million, forty thousand, four hundred".