500320644 has 48 divisors (see below), whose sum is σ = 1215043200. Its totient is φ = 160039936.

The previous prime is 500320627. The next prime is 500320651. The reversal of 500320644 is 446023005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53812 + ... + 62420.

It is an arithmetic number, because the mean of its divisors is an integer number (25313400).

Almost surely, 2^500320644 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 500320644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607521600).

500320644 is an abundant number, since it is smaller than the sum of its proper divisors (714722556).

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

500320644 is a wasteful number, since it uses less digits than its factorization.

500320644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8812 (or 8810 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 500320644 is about 22367.8484436926. The cubic root of 500320644 is about 793.8701532703.

Adding to 500320644 its reverse (446023005), we get a palindrome (946343649).

The spelling of 500320644 in words is "five hundred million, three hundred twenty thousand, six hundred forty-four".