128328 has 16 divisors (see below), whose sum is σ = 320880. Its totient is φ = 42768.

The previous prime is 128327. The next prime is 128339. The reversal of 128328 is 823821.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5347 = 128328 / (1 + 2 + 8 + 3 + 2 + 8).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 128298 and 128307.

It is not an unprimeable number, because it can be changed into a prime (128321) 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, 2650 + ... + 2697.

It is an arithmetic number, because the mean of its divisors is an integer number (20055).

2¹²⁸³²⁸ is an apocalyptic number.

It is an amenable number.

128328 is an abundant number, since it is smaller than the sum of its proper divisors (192552).

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

128328 is a wasteful number, since it uses less digits than its factorization.

128328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356 (or 5352 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 128328 is about 358.2289770524. The cubic root of 128328 is about 50.4398525810.

The spelling of 128328 in words is "one hundred twenty-eight thousand, three hundred twenty-eight".