500388 has 72 divisors (see below), whose sum is σ = 1455552. Its totient is φ = 133056.

The previous prime is 500369. The next prime is 500389. The reversal of 500388 is 883005.

It is not an unprimeable number, because it can be changed into a prime (500389) by changing a digit.

500388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13506 + ... + 13542.

It is an arithmetic number, because the mean of its divisors is an integer number (20216).

2⁵⁰⁰³⁸⁸ 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 500388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727776).

500388 is an abundant number, since it is smaller than the sum of its proper divisors (955164).

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

500388 is a wasteful number, since it uses less digits than its factorization.

500388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 500388 is about 707.3810854129. The cubic root of 500388 is about 79.3905776771.

It can be divided in two parts, 500 and 388, that added together give a palindrome (888).

The spelling of 500388 in words is "five hundred thousand, three hundred eighty-eight".