630328 has 8 divisors (see below), whose sum is σ = 1181880. Its totient is φ = 315160.

The previous prime is 630319. The next prime is 630349. The reversal of 630328 is 823036.

630328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 630299 and 630308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39388 + ... + 39403.

It is an arithmetic number, because the mean of its divisors is an integer number (147735).

2⁶³⁰³²⁸ is an apocalyptic number.

It is an amenable number.

630328 is a deficient number, since it is larger than the sum of its proper divisors (551552).

630328 is a wasteful number, since it uses less digits than its factorization.

630328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78797 (or 78793 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 630328 is about 793.9319870115. The cubic root of 630328 is about 85.7410635912.

The spelling of 630328 in words is "six hundred thirty thousand, three hundred twenty-eight".