128340704 has 12 divisors (see below), whose sum is σ = 252670824. Its totient is φ = 64170336.

The previous prime is 128340683. The next prime is 128340733. The reversal of 128340704 is 407043821.

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 as a sum of consecutive naturals, namely, 2005292 + ... + 2005355.

It is an arithmetic number, because the mean of its divisors is an integer number (21055902).

Almost surely, 2^128340704 is an apocalyptic number.

It is an amenable number.

128340704 is a deficient number, since it is larger than the sum of its proper divisors (124330120).

128340704 is an equidigital number, since it uses as much as digits as its factorization.

128340704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010657 (or 4010649 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 128340704 is about 11328.7556245159. The cubic root of 128340704 is about 504.4151697939.

The spelling of 128340704 in words is "one hundred twenty-eight million, three hundred forty thousand, seven hundred four".