128243682 has 96 divisors (see below), whose sum is σ = 351138240. Its totient is φ = 34473600.

The previous prime is 128243671. The next prime is 128243701. The reversal of 128243682 is 286342821.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43557 + ... + 46407.

It is an arithmetic number, because the mean of its divisors is an integer number (3657690).

Almost surely, 2^128243682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128243682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175569120).

128243682 is an abundant number, since it is smaller than the sum of its proper divisors (222894558).

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

128243682 is a wasteful number, since it uses less digits than its factorization.

128243682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893 (or 2880 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 128243682 is about 11324.4727029562. The cubic root of 128243682 is about 504.2880298076.

The spelling of 128243682 in words is "one hundred twenty-eight million, two hundred forty-three thousand, six hundred eighty-two".