500008920 has 128 divisors (see below), whose sum is σ = 1557411840. Its totient is φ = 128286720.

The previous prime is 500008919. The next prime is 500008963. The reversal of 500008920 is 29800005.

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

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 955779 + ... + 956301.

It is an arithmetic number, because the mean of its divisors is an integer number (12167280).

Almost surely, 2^500008920 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 500008920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (778705920).

500008920 is an abundant number, since it is smaller than the sum of its proper divisors (1057402920).

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

500008920 is a wasteful number, since it uses less digits than its factorization.

500008920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 500008920 is about 22360.8792313719. The cubic root of 500008920 is about 793.7052458285.

Adding to 500008920 its reverse (29800005), we get a palindrome (529808925).

The spelling of 500008920 in words is "five hundred million, eight thousand, nine hundred twenty".