328340 has 12 divisors (see below), whose sum is σ = 689556. Its totient is φ = 131328.

The previous prime is 328333. The next prime is 328343. The reversal of 328340 is 43823.

328340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 99856 + 228484 = 316^2 + 478^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 16417 = 328340 / (3 + 2 + 8 + 3 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328343) 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, 8189 + ... + 8228.

It is an arithmetic number, because the mean of its divisors is an integer number (57463).

2³²⁸³⁴⁰ is an apocalyptic number.

It is an amenable number.

328340 is an abundant number, since it is smaller than the sum of its proper divisors (361216).

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

328340 is a wasteful number, since it uses less digits than its factorization.

328340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16426 (or 16424 counting only the distinct ones).

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

The square root of 328340 is about 573.0095985234. The cubic root of 328340 is about 68.9881657223.

The spelling of 328340 in words is "three hundred twenty-eight thousand, three hundred forty".