128017396 has 12 divisors (see below), whose sum is σ = 241263652. Its totient is φ = 59084928.

The previous prime is 128017391. The next prime is 128017411. The reversal of 128017396 is 693710821.

It can be written as a sum of positive squares in 2 ways, for example, as 84272400 + 43744996 = 9180^2 + 6614^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128017391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230885 + ... + 1230988.

Almost surely, 2^128017396 is an apocalyptic number.

It is an amenable number.

128017396 is a deficient number, since it is larger than the sum of its proper divisors (113246256).

128017396 is a wasteful number, since it uses less digits than its factorization.

128017396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461890 (or 2461888 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 128017396 is about 11314.4772747131. The cubic root of 128017396 is about 503.9912497431.

The spelling of 128017396 in words is "one hundred twenty-eight million, seventeen thousand, three hundred ninety-six".