3243705456 has 80 divisors (see below), whose sum is σ = 8776295424. Its totient is φ = 1030394112.

The previous prime is 3243705407. The next prime is 3243705463. The reversal of 3243705456 is 6545073423.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300505 + ... + 311111.

Almost surely, 2^3243705456 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 3243705456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4388147712).

3243705456 is an abundant number, since it is smaller than the sum of its proper divisors (5532589968).

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

3243705456 is a wasteful number, since it uses less digits than its factorization.

3243705456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10918 (or 10912 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 39.

The square root of 3243705456 is about 56953.5376952126. The cubic root of 3243705456 is about 1480.2911309431.

Adding to 3243705456 its reverse (6545073423), we get a palindrome (9788778879).

The spelling of 3243705456 in words is "three billion, two hundred forty-three million, seven hundred five thousand, four hundred fifty-six".