128395794 has 8 divisors (see below), whose sum is σ = 256791600. Its totient is φ = 42798596.

The previous prime is 128395793. The next prime is 128395801. The reversal of 128395794 is 497593821.

It is a sphenic number, since it is the product of 3 distinct primes.

128395794 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (128395793) by changing a digit.

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, 10699644 + ... + 10699655.

It is an arithmetic number, because the mean of its divisors is an integer number (32098950).

Almost surely, 2^128395794 is an apocalyptic number.

128395794 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128395794 is a wasteful number, since it uses less digits than its factorization.

128395794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21399304.

The product of its digits is 544320, while the sum is 48.

The square root of 128395794 is about 11331.1867869169. The cubic root of 128395794 is about 504.4873325497.

The spelling of 128395794 in words is "one hundred twenty-eight million, three hundred ninety-five thousand, seven hundred ninety-four".