2044401231340 has 96 divisors (see below), whose sum is σ = 4691044036224. Its totient is φ = 743837982720.

The previous prime is 2044401231329. The next prime is 2044401231343. The reversal of 2044401231340 is 431321044402.

It is a junction number, because it is equal to n+sod(n) for n = 2044401231299 and 2044401231308.

It is not an unprimeable number, because it can be changed into a prime (2044401231343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36836892 + ... + 36892348.

It is an arithmetic number, because the mean of its divisors is an integer number (48865042044).

Almost surely, 2^{2044401231340} is an apocalyptic number.

2044401231340 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 2044401231340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345522018112).

2044401231340 is an abundant number, since it is smaller than the sum of its proper divisors (2646642804884).

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

2044401231340 is a wasteful number, since it uses less digits than its factorization.

2044401231340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57547 (or 57545 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 2044401231340 its reverse (431321044402), we get a palindrome (2475722275742).

The spelling of 2044401231340 in words is "two trillion, forty-four billion, four hundred one million, two hundred thirty-one thousand, three hundred forty".