330428 has 12 divisors (see below), whose sum is σ = 660912. Its totient is φ = 141600.

The previous prime is 330427. The next prime is 330431. The reversal of 330428 is 824033.

330428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

330428 is an admirable number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5873 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (55076).

2³³⁰⁴²⁸ is an apocalyptic number.

It is an amenable number.

330428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

330428 is a wasteful number, since it uses less digits than its factorization.

330428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11812 (or 11810 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 330428 is about 574.8286701270. The cubic root of 330428 is about 69.1340947587.

The spelling of 330428 in words is "three hundred thirty thousand, four hundred twenty-eight".