2044220420440 has 96 divisors (see below), whose sum is σ = 5065354284480. Its totient is φ = 741925184000.

The previous prime is 2044220420401. The next prime is 2044220420467. The reversal of 2044220420440 is 440240224402.

It is a junction number, because it is equal to n+sod(n) for n = 2044220420399 and 2044220420408.

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, 2116305 + ... + 2926975.

It is an arithmetic number, because the mean of its divisors is an integer number (52764107130).

Almost surely, 2^{2044220420440} is an apocalyptic number.

2044220420440 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 2044220420440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2532677142240).

2044220420440 is an abundant number, since it is smaller than the sum of its proper divisors (3021133864040).

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

2044220420440 is a wasteful number, since it uses less digits than its factorization.

2044220420440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811225 (or 811210 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 2044220420440 its reverse (440240224402), we get a palindrome (2484460644842).

The spelling of 2044220420440 in words is "two trillion, forty-four billion, two hundred twenty million, four hundred twenty thousand, four hundred forty".