128328300 has 108 divisors (see below), whose sum is σ = 417214616. Its totient is φ = 34214400.

The previous prime is 128328289. The next prime is 128328307. The reversal of 128328300 is 3823821.

It is a tau number, because it is divible by the number of its divisors (108).

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

It is not an unprimeable number, because it can be changed into a prime (128328307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21660 + ... + 26940.

Almost surely, 2^128328300 is an apocalyptic number.

128328300 is a gapful number since it is divisible by the number (10) 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 128328300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208607308).

128328300 is an abundant number, since it is smaller than the sum of its proper divisors (288886316).

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

128328300 is a wasteful number, since it uses less digits than its factorization.

128328300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5310 (or 5291 counting only the distinct ones).

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

The square root of 128328300 is about 11328.2081548672. The cubic root of 128328300 is about 504.3989188640.

The spelling of 128328300 in words is "one hundred twenty-eight million, three hundred twenty-eight thousand, three hundred".