128735336 has 16 divisors (see below), whose sum is σ = 254083200. Its totient is φ = 60979824.

The previous prime is 128735329. The next prime is 128735359. The reversal of 128735336 is 633537821.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 128735336.

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, 423320 + ... + 423623.

It is an arithmetic number, because the mean of its divisors is an integer number (15880200).

Almost surely, 2^128735336 is an apocalyptic number.

It is an amenable number.

128735336 is a deficient number, since it is larger than the sum of its proper divisors (125347864).

128735336 is a wasteful number, since it uses less digits than its factorization.

128735336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846968 (or 846964 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 128735336 is about 11346.1595264653. The cubic root of 128735336 is about 504.9316458148.

The spelling of 128735336 in words is "one hundred twenty-eight million, seven hundred thirty-five thousand, three hundred thirty-six".