2044303440 has 80 divisors (see below), whose sum is σ = 6365925888. Its totient is φ = 542688768.

The previous prime is 2044303427. The next prime is 2044303507. The reversal of 2044303440 is 443034402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2044303440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34422 + ... + 72618.

Almost surely, 2^2044303440 is an apocalyptic number.

2044303440 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 2044303440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3182962944).

2044303440 is an abundant number, since it is smaller than the sum of its proper divisors (4321622448).

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

2044303440 is a wasteful number, since it uses less digits than its factorization.

2044303440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38436 (or 38430 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 2044303440 is about 45213.9739461154. The cubic root of 2044303440 is about 1269.1563289138.

Adding to 2044303440 its reverse (443034402), we get a palindrome (2487337842).

The spelling of 2044303440 in words is "two billion, forty-four million, three hundred three thousand, four hundred forty".