330628 has 6 divisors (see below), whose sum is σ = 578606. Its totient is φ = 165312.

The previous prime is 330623. The next prime is 330641. The reversal of 330628 is 826033.

It can be written as a sum of positive squares in only one way, i.e., 293764 + 36864 = 542^2 + 192^2 .

It is a junction number, because it is equal to n+sod(n) for n = 330599 and 330608.

It is not an unprimeable number, because it can be changed into a prime (330623) by changing a digit.

330628 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41325 + ... + 41332.

2³³⁰⁶²⁸ is an apocalyptic number.

It is an amenable number.

330628 is a deficient number, since it is larger than the sum of its proper divisors (247978).

330628 is a wasteful number, since it uses less digits than its factorization.

330628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82661 (or 82659 counting only the distinct ones).

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

The square root of 330628 is about 575.0026086897. The cubic root of 330628 is about 69.1480403386.

The spelling of 330628 in words is "three hundred thirty thousand, six hundred twenty-eight".