128735338 has 16 divisors (see below), whose sum is σ = 196375104. Its totient is φ = 63286240.

The previous prime is 128735329. The next prime is 128735359. The reversal of 128735338 is 833537821.

It is a self number, because there is not a number n which added to its sum of digits gives 128735338.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27123 + ... + 31513.

It is an arithmetic number, because the mean of its divisors is an integer number (12273444).

Almost surely, 2^128735338 is an apocalyptic number.

128735338 is a deficient number, since it is larger than the sum of its proper divisors (67639766).

128735338 is a wasteful number, since it uses less digits than its factorization.

128735338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637.

The product of its digits is 120960, while the sum is 40.

The square root of 128735338 is about 11346.1596146009. The cubic root of 128735338 is about 504.9316484297.

The spelling of 128735338 in words is "one hundred twenty-eight million, seven hundred thirty-five thousand, three hundred thirty-eight".