128044704 has 24 divisors (see below), whose sum is σ = 336117600. Its totient is φ = 42681536.

The previous prime is 128044639. The next prime is 128044727. The reversal of 128044704 is 407440821.

It is a tau number, because it is divible by the number of its divisors (24).

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 3 ways as a sum of consecutive naturals, for example, 666804 + ... + 666995.

It is an arithmetic number, because the mean of its divisors is an integer number (14004900).

Almost surely, 2^128044704 is an apocalyptic number.

It is an amenable number.

128044704 is an abundant number, since it is smaller than the sum of its proper divisors (208072896).

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

128044704 is a wasteful number, since it uses less digits than its factorization.

128044704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333812 (or 1333804 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 128044704 is about 11315.6839828620. The cubic root of 128044704 is about 504.0270834526.

The spelling of 128044704 in words is "one hundred twenty-eight million, forty-four thousand, seven hundred four".