2044320520 has 64 divisors (see below), whose sum is σ = 5029128000. Its totient is φ = 741722880.

The previous prime is 2044320463. The next prime is 2044320527. The reversal of 2044320520 is 250234402.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2044320491 and 2044320500.

It is not an unprimeable number, because it can be changed into a prime (2044320527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200506 + ... + 210454.

It is an arithmetic number, because the mean of its divisors is an integer number (78580125).

Almost surely, 2^2044320520 is an apocalyptic number.

2044320520 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 2044320520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2514564000).

2044320520 is an abundant number, since it is smaller than the sum of its proper divisors (2984807480).

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

2044320520 is a wasteful number, since it uses less digits than its factorization.

2044320520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10438 (or 10434 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 2044320520 is about 45214.1628253803. The cubic root of 2044320520 is about 1269.1598634722.

Adding to 2044320520 its reverse (250234402), we get a palindrome (2294554922).

The spelling of 2044320520 in words is "two billion, forty-four million, three hundred twenty thousand, five hundred twenty".