128393714 has 32 divisors (see below), whose sum is σ = 203076720. Its totient is φ = 60825600.

The previous prime is 128393669. The next prime is 128393717. The reversal of 128393714 is 417393821.

It can be written as a sum of positive squares in 8 ways, for example, as 29888089 + 98505625 = 5467^2 + 9925^2 .

It is not an unprimeable number, because it can be changed into a prime (128393717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532634 + ... + 532874.

Almost surely, 2^128393714 is an apocalyptic number.

128393714 is a deficient number, since it is larger than the sum of its proper divisors (74683006).

128393714 is a wasteful number, since it uses less digits than its factorization.

128393714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its digits is 36288, while the sum is 38.

The square root of 128393714 is about 11331.0950044557. The cubic root of 128393714 is about 504.4846083189.

The spelling of 128393714 in words is "one hundred twenty-eight million, three hundred ninety-three thousand, seven hundred fourteen".