128648308 has 24 divisors (see below), whose sum is σ = 231747264. Its totient is φ = 62462400.

The previous prime is 128648251. The next prime is 128648309. The reversal of 128648308 is 803846821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128648309) 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 7 ways as a sum of consecutive naturals, for example, 15648 + ... + 22408.

It is an arithmetic number, because the mean of its divisors is an integer number (9656136).

Almost surely, 2^128648308 is an apocalyptic number.

It is an amenable number.

128648308 is a deficient number, since it is larger than the sum of its proper divisors (103098956).

128648308 is a wasteful number, since it uses less digits than its factorization.

128648308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6903 (or 6901 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 128648308 is about 11342.3237478041. The cubic root of 128648308 is about 504.8178384264.

It can be divided in two parts, 1286 and 48308, that added together give a palindrome (49594).

The spelling of 128648308 in words is "one hundred twenty-eight million, six hundred forty-eight thousand, three hundred eight".