128388304 has 40 divisors (see below), whose sum is σ = 272170080. Its totient is φ = 58185600.

The previous prime is 128388259. The next prime is 128388331. The reversal of 128388304 is 403883821.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 72874 + ... + 74614.

It is an arithmetic number, because the mean of its divisors is an integer number (6804252).

Almost surely, 2^128388304 is an apocalyptic number.

It is an amenable number.

128388304 is an abundant number, since it is smaller than the sum of its proper divisors (143781776).

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

128388304 is a wasteful number, since it uses less digits than its factorization.

128388304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 128388304 is about 11330.8562783225. The cubic root of 128388304 is about 504.4775225617.

The spelling of 128388304 in words is "one hundred twenty-eight million, three hundred eighty-eight thousand, three hundred four".