500028 has 12 divisors (see below), whose sum is σ = 1166760. Its totient is φ = 166672.

The previous prime is 500009. The next prime is 500029. The reversal of 500028 is 820005.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500029) by changing a digit.

500028 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 3 ways as a sum of consecutive naturals, for example, 20823 + ... + 20846.

It is an arithmetic number, because the mean of its divisors is an integer number (97230).

2⁵⁰⁰⁰²⁸ is an apocalyptic number.

It is an amenable number.

500028 is an abundant number, since it is smaller than the sum of its proper divisors (666732).

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

500028 is a wasteful number, since it uses less digits than its factorization.

500028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41676 (or 41674 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 500028 is about 707.1265798992. The cubic root of 500028 is about 79.3715341451.

The spelling of 500028 in words is "five hundred thousand, twenty-eight".