500020 has 24 divisors (see below), whose sum is σ = 1096704. Its totient is φ = 191136.

The previous prime is 500009. The next prime is 500029. The reversal of 500020 is 20005.

It is a sliding number, since 500020 = 20 + 500000 and 1/20 + 1/500000 = 0.0500020.

It is a junction number, because it is equal to n+sod(n) for n = 499976 and 500012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500029) 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, 84 + ... + 1003.

It is an arithmetic number, because the mean of its divisors is an integer number (45696).

2⁵⁰⁰⁰²⁰ is an apocalyptic number.

It is an amenable number.

500020 is an abundant number, since it is smaller than the sum of its proper divisors (596684).

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

500020 is a wasteful number, since it uses less digits than its factorization.

500020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 7.

The square root of 500020 is about 707.1209231808. The cubic root of 500020 is about 79.3711108517.

Adding to 500020 its reverse (20005), we get a palindrome (520025).

It can be divided in two parts, 5000 and 20, that multiplied together give a 5-th power (100000 = 10⁵).

The spelling of 500020 in words is "five hundred thousand, twenty".