128435704 has 16 divisors (see below), whose sum is σ = 241103520. Its totient is φ = 64141440.

The previous prime is 128435677. The next prime is 128435729. The reversal of 128435704 is 407534821.

It is a self number, because there is not a number n which added to its sum of digits gives 128435704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2064 + ... + 16159.

It is an arithmetic number, because the mean of its divisors is an integer number (15068970).

Almost surely, 2^128435704 is an apocalyptic number.

It is an amenable number.

128435704 is a deficient number, since it is larger than the sum of its proper divisors (112667816).

128435704 is a wasteful number, since it uses less digits than its factorization.

128435704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19110 (or 19106 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 128435704 is about 11332.9477189300. The cubic root of 128435704 is about 504.5395980304.

The spelling of 128435704 in words is "one hundred twenty-eight million, four hundred thirty-five thousand, seven hundred four".