3260840128 has 112 divisors (see below), whose sum is σ = 8013517120. Its totient is φ = 1289613312.

The previous prime is 3260840041. The next prime is 3260840129. The reversal of 3260840128 is 8210480623.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 3260840093 and 3260840102.

It is not an unprimeable number, because it can be changed into a prime (3260840129) 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 15 ways as a sum of consecutive naturals, for example, 982600 + ... + 985912.

It is an arithmetic number, because the mean of its divisors is an integer number (71549260).

Almost surely, 2^3260840128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3260840128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4006758560).

3260840128 is an abundant number, since it is smaller than the sum of its proper divisors (4752676992).

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

3260840128 is an equidigital number, since it uses as much as digits as its factorization.

3260840128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 3260840128 is about 57103.7663206202. The cubic root of 3260840128 is about 1482.8930700075.

The spelling of 3260840128 in words is "three billion, two hundred sixty million, eight hundred forty thousand, one hundred twenty-eight".