503220 has 24 divisors (see below), whose sum is σ = 1409184. Its totient is φ = 134176.

The previous prime is 503213. The next prime is 503227. The reversal of 503220 is 22305.

It is an interprime number because it is at equal distance from previous prime (503213) and next prime (503227).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 503196 and 503205.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 503220.

It is not an unprimeable number, because it can be changed into a prime (503227) by changing a digit.

503220 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 7 ways as a sum of consecutive naturals, for example, 4134 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (58716).

2⁵⁰³²²⁰ is an apocalyptic number.

It is an amenable number.

503220 is an abundant number, since it is smaller than the sum of its proper divisors (905964).

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

503220 is a wasteful number, since it uses less digits than its factorization.

503220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8399 (or 8397 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 503220 is about 709.3800109955. The cubic root of 503220 is about 79.5400691963.

Adding to 503220 its reverse (22305), we get a palindrome (525525).

The spelling of 503220 in words is "five hundred three thousand, two hundred twenty".