328940 has 12 divisors (see below), whose sum is σ = 690816. Its totient is φ = 131568.

The previous prime is 328931. The next prime is 328961. The reversal of 328940 is 49823.

It is a zygodrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328940.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8204 + ... + 8243.

It is an arithmetic number, because the mean of its divisors is an integer number (57568).

2³²⁸⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

328940 is an abundant number, since it is smaller than the sum of its proper divisors (361876).

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

328940 is a wasteful number, since it uses less digits than its factorization.

328940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16456 (or 16454 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 328940 is about 573.5329109999. The cubic root of 328940 is about 69.0301625463.

The spelling of 328940 in words is "three hundred twenty-eight thousand, nine hundred forty".