3256760640 has 224 divisors, whose sum is σ = 11961815040. Its totient is φ = 735307776.

The previous prime is 3256760627. The next prime is 3256760641. The reversal of 3256760640 is 460676523.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256760641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 554841 + ... + 560679.

It is an arithmetic number, because the mean of its divisors is an integer number (53400960).

Almost surely, 2^3256760640 is an apocalyptic number.

3256760640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3256760640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5980907520).

3256760640 is an abundant number, since it is smaller than the sum of its proper divisors (8705054400).

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

3256760640 is a wasteful number, since it uses less digits than its factorization.

3256760640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949 (or 5939 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 3256760640 is about 57068.0351860829. The cubic root of 3256760640 is about 1482.2744187061.

The spelling of 3256760640 in words is "three billion, two hundred fifty-six million, seven hundred sixty thousand, six hundred forty".