128308484 has 12 divisors (see below), whose sum is σ = 227891664. Its totient is φ = 63196584.

The previous prime is 128308483. The next prime is 128308507. The reversal of 128308484 is 484803821.

It is not an unprimeable number, because it can be changed into a prime (128308483) 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 3 ways as a sum of consecutive naturals, for example, 239114 + ... + 239649.

It is an arithmetic number, because the mean of its divisors is an integer number (18990972).

Almost surely, 2^128308484 is an apocalyptic number.

It is an amenable number.

128308484 is a deficient number, since it is larger than the sum of its proper divisors (99583180).

128308484 is a wasteful number, since it uses less digits than its factorization.

128308484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478834 (or 478832 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 128308484 is about 11327.3334902792. Note that the first 3 decimals coincide. The cubic root of 128308484 is about 504.3729550314.

The spelling of 128308484 in words is "one hundred twenty-eight million, three hundred eight thousand, four hundred eighty-four".