328860 has 120 divisors (see below), whose sum is σ = 1219680. Its totient is φ = 72576.

The previous prime is 328849. The next prime is 328883. The reversal of 328860 is 68823.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 87 × 63 × 60.

It is a congruent number.

It is an unprimeable 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 in 39 ways as a sum of consecutive naturals, for example, 11326 + ... + 11354.

It is an arithmetic number, because the mean of its divisors is an integer number (10164).

2³²⁸⁸⁶⁰ is an apocalyptic number.

328860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609840).

328860 is an abundant number, since it is smaller than the sum of its proper divisors (890820).

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

328860 is a wasteful number, since it uses less digits than its factorization.

328860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 328860 is about 573.4631635947. The cubic root of 328860 is about 69.0245659220.

The spelling of 328860 in words is "three hundred twenty-eight thousand, eight hundred sixty".