5208440320 has 80 divisors (see below), whose sum is σ = 12512190240. Its totient is φ = 2079350784.

The previous prime is 5208440267. The next prime is 5208440323. The reversal of 5208440320 is 230448025.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5208440323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567621 + ... + 1570939.

It is an arithmetic number, because the mean of its divisors is an integer number (156402378).

Almost surely, 2^5208440320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5208440320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6256095120).

5208440320 is an abundant number, since it is smaller than the sum of its proper divisors (7303749920).

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

5208440320 is an equidigital number, since it uses as much as digits as its factorization.

5208440320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955 (or 3939 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 5208440320 is about 72169.5248702664. The cubic root of 5208440320 is about 1733.4150546612.

Adding to 5208440320 its reverse (230448025), we get a palindrome (5438888345).

The spelling of 5208440320 in words is "five billion, two hundred eight million, four hundred forty thousand, three hundred twenty".