3243243040 has 72 divisors (see below), whose sum is σ = 7716132900. Its totient is φ = 1288212480.

The previous prime is 3243243001. The next prime is 3243243061. The reversal of 3243243040 is 403423423.

It can be written as a sum of positive squares in 6 ways, for example, as 2576983696 + 666259344 = 50764^2 + 25812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3243242996 and 3243243014.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9292786 + ... + 9293134.

Almost surely, 2^3243243040 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 3243243040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3858066450).

3243243040 is an abundant number, since it is smaller than the sum of its proper divisors (4472889860).

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

3243243040 is an equidigital number, since it uses as much as digits as its factorization.

3243243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 3243243040 is about 56949.4779607329. The cubic root of 3243243040 is about 1480.2207851772.

Adding to 3243243040 its reverse (403423423), we get a palindrome (3646666463).

The spelling of 3243243040 in words is "three billion, two hundred forty-three million, two hundred forty-three thousand, forty".