128715384 has 32 divisors (see below), whose sum is σ = 367758720. Its totient is φ = 36775776.

The previous prime is 128715373. The next prime is 128715397. The reversal of 128715384 is 483517821.

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, 382914 + ... + 383249.

It is an arithmetic number, because the mean of its divisors is an integer number (11492460).

Almost surely, 2^128715384 is an apocalyptic number.

128715384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128715384 is an abundant number, since it is smaller than the sum of its proper divisors (239043336).

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

128715384 is a wasteful number, since it uses less digits than its factorization.

128715384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766179 (or 766175 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 128715384 is about 11345.2802521577. The cubic root of 128715384 is about 504.9055589169.

The spelling of 128715384 in words is "one hundred twenty-eight million, seven hundred fifteen thousand, three hundred eighty-four".