128805708 has 48 divisors (see below), whose sum is σ = 308206080. Its totient is φ = 41855424.

The previous prime is 128805701. The next prime is 128805751. The reversal of 128805708 is 807508821.

It is not an unprimeable number, because it can be changed into a prime (128805701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77866 + ... + 79502.

It is an arithmetic number, because the mean of its divisors is an integer number (6420960).

Almost surely, 2^128805708 is an apocalyptic number.

It is an amenable number.

128805708 is an abundant number, since it is smaller than the sum of its proper divisors (179400372).

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

128805708 is a wasteful number, since it uses less digits than its factorization.

128805708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 1804 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 128805708 is about 11349.2602402095. The cubic root of 128805708 is about 505.0236344851.

The spelling of 128805708 in words is "one hundred twenty-eight million, eight hundred five thousand, seven hundred eight".