128328910 has 16 divisors (see below), whose sum is σ = 232757712. Its totient is φ = 50939200.

The previous prime is 128328887. The next prime is 128328923. The reversal of 128328910 is 19823821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47671 + ... + 50290.

It is an arithmetic number, because the mean of its divisors is an integer number (14547357).

Almost surely, 2^128328910 is an apocalyptic number.

128328910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128328910 is a deficient number, since it is larger than the sum of its proper divisors (104428802).

128328910 is a wasteful number, since it uses less digits than its factorization.

128328910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98099.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 128328910 is about 11328.2350787755. The cubic root of 128328910 is about 504.3997180716.

The spelling of 128328910 in words is "one hundred twenty-eight million, three hundred twenty-eight thousand, nine hundred ten".