128173368 has 32 divisors (see below), whose sum is σ = 327888000. Its totient is φ = 41730528.

The previous prime is 128173349. The next prime is 128173379. The reversal of 128173368 is 863371821.

It is a congruent number.

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, 61068 + ... + 63131.

It is an arithmetic number, because the mean of its divisors is an integer number (10246500).

Almost surely, 2^128173368 is an apocalyptic number.

It is an amenable number.

128173368 is an abundant number, since it is smaller than the sum of its proper divisors (199714632).

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

128173368 is a wasteful number, since it uses less digits than its factorization.

128173368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124251 (or 124247 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 128173368 is about 11321.3677618917. The cubic root of 128173368 is about 504.1958485518.

The spelling of 128173368 in words is "one hundred twenty-eight million, one hundred seventy-three thousand, three hundred sixty-eight".