3256593648 has 320 divisors, whose sum is σ = 11095670784. Its totient is φ = 798336000.

The previous prime is 3256593631. The next prime is 3256593649. The reversal of 3256593648 is 8463956523.

It is a self number, because there is not a number n which added to its sum of digits gives 3256593648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256593649) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4926438 + ... + 4927098.

Almost surely, 2^3256593648 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 3256593648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5547835392).

3256593648 is an abundant number, since it is smaller than the sum of its proper divisors (7839077136).

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

3256593648 is a wasteful number, since it uses less digits than its factorization.

3256593648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 758 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 51.

The square root of 3256593648 is about 57066.5720715727. The cubic root of 3256593648 is about 1482.2490834903.

The spelling of 3256593648 in words is "three billion, two hundred fifty-six million, five hundred ninety-three thousand, six hundred forty-eight".