630220 has 12 divisors (see below), whose sum is σ = 1323504. Its totient is φ = 252080.

The previous prime is 630197. The next prime is 630229. The reversal of 630220 is 22036.

It is a self number, because there is not a number n which added to its sum of digits gives 630220.

It is not an unprimeable number, because it can be changed into a prime (630229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15736 + ... + 15775.

It is an arithmetic number, because the mean of its divisors is an integer number (110292).

2⁶³⁰²²⁰ is an apocalyptic number.

It is an amenable number.

630220 is an abundant number, since it is smaller than the sum of its proper divisors (693284).

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

630220 is a wasteful number, since it uses less digits than its factorization.

630220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31520 (or 31518 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 630220 is about 793.8639681961. The cubic root of 630220 is about 85.7361663716.

Adding to 630220 its reverse (22036), we get a palindrome (652256).

The spelling of 630220 in words is "six hundred thirty thousand, two hundred twenty".