630318 has 16 divisors (see below), whose sum is σ = 1357776. Its totient is φ = 193920.

The previous prime is 630307. The next prime is 630319. The reversal of 630318 is 813036.

It is a super-2 number, since 2×630318² = 794601562248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 630294 and 630303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630319) 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 7 ways as a sum of consecutive naturals, for example, 3963 + ... + 4118.

It is an arithmetic number, because the mean of its divisors is an integer number (84861).

2⁶³⁰³¹⁸ is an apocalyptic number.

630318 is an abundant number, since it is smaller than the sum of its proper divisors (727458).

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

630318 is a wasteful number, since it uses less digits than its factorization.

630318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8099.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 630318 is about 793.9256892178. The cubic root of 630318 is about 85.7406101684.

The spelling of 630318 in words is "six hundred thirty thousand, three hundred eighteen".