3256004128 has 48 divisors (see below), whose sum is σ = 6931080576. Its totient is φ = 1496736000.

The previous prime is 3256004117. The next prime is 3256004153. The reversal of 3256004128 is 8214006523.

It is a self number, because there is not a number n which added to its sum of digits gives 3256004128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88825 + ... + 120007.

It is an arithmetic number, because the mean of its divisors is an integer number (144397512).

Almost surely, 2^3256004128 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 3256004128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3465540288).

3256004128 is an abundant number, since it is smaller than the sum of its proper divisors (3675076448).

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

3256004128 is a wasteful number, since it uses less digits than its factorization.

3256004128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31457 (or 31449 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 3256004128 is about 57061.4066423182. The cubic root of 3256004128 is about 1482.1596374508.

The spelling of 3256004128 in words is "three billion, two hundred fifty-six million, four thousand, one hundred twenty-eight".