3243042240 has 112 divisors (see below), whose sum is σ = 10362724512. Its totient is φ = 859262976.

The previous prime is 3243042233. The next prime is 3243042263. The reversal of 3243042240 is 422403423.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3243042240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139962 + ... + 161478.

It is an arithmetic number, because the mean of its divisors is an integer number (92524326).

Almost surely, 2^3243042240 is an apocalyptic number.

3243042240 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 3243042240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5181362256).

3243042240 is an abundant number, since it is smaller than the sum of its proper divisors (7119682272).

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

3243042240 is a wasteful number, since it uses less digits than its factorization.

3243042240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21694 (or 21684 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 3243042240 is about 56947.7149673277. The cubic root of 3243042240 is about 1480.1902360772.

Adding to 3243042240 its reverse (422403423), we get a palindrome (3665445663).

The spelling of 3243042240 in words is "three billion, two hundred forty-three million, forty-two thousand, two hundred forty".