630330 has 16 divisors (see below), whose sum is σ = 1512864. Its totient is φ = 168080.

The previous prime is 630319. The next prime is 630349. The reversal of 630330 is 33036.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

630330 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 10476 + ... + 10535.

It is an arithmetic number, because the mean of its divisors is an integer number (94554).

2⁶³⁰³³⁰ is an apocalyptic number.

630330 is an abundant number, since it is smaller than the sum of its proper divisors (882534).

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

630330 is a wasteful number, since it uses less digits than its factorization.

630330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21021.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 630330 is about 793.9332465642. The cubic root of 630330 is about 85.7411542751.

Adding to 630330 its reverse (33036), we get a palindrome (663366).

The spelling of 630330 in words is "six hundred thirty thousand, three hundred thirty".