3128328 has 64 divisors (see below), whose sum is σ = 9936000. Its totient is φ = 893376.

The previous prime is 3128311. The next prime is 3128329. The reversal of 3128328 is 8238213.

3128328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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

It is not an unprimeable number, because it can be changed into a prime (3128329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (155250).

Almost surely, 2^3128328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3128328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4968000).

3128328 is an abundant number, since it is smaller than the sum of its proper divisors (6807672).

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

3128328 is a wasteful number, since it uses less digits than its factorization.

3128328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2081 counting only the distinct ones).

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

The square root of 3128328 is about 1768.7080030350. The cubic root of 3128328 is about 146.2527678635.

The spelling of 3128328 in words is "three million, one hundred twenty-eight thousand, three hundred twenty-eight".