500640000 has 360 divisors, whose sum is σ = 1915636800. Its totient is φ = 113664000.

The previous prime is 500639999. The next prime is 500640001. The reversal of 500640000 is 46005.

It is an interprime number because it is at equal distance from previous prime (500639999) and next prime (500640001).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500640001) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 3359926 + ... + 3360074.

Almost surely, 2^500640000 is an apocalyptic number.

500640000 is a gapful number since it is divisible by the number (50) 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 500640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957818400).

500640000 is an abundant number, since it is smaller than the sum of its proper divisors (1414996800).

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

500640000 is an equidigital number, since it uses as much as digits as its factorization.

500640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 500640000 is about 22374.9860335152. The cubic root of 500640000 is about 794.0390271557.

Adding to 500640000 its reverse (46005), we get a palindrome (500686005).

The spelling of 500640000 in words is "five hundred million, six hundred forty thousand".