3242240305 has 4 divisors (see below), whose sum is σ = 3890688372. Its totient is φ = 2593792240.

The previous prime is 3242240303. The next prime is 3242240311. The reversal of 3242240305 is 5030422423.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1807270144 + 1434970161 = 42512^2 + 37881^2 .

It is not a de Polignac number, because 3242240305 - 2¹ = 3242240303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3242240305.

It is not an unprimeable number, because it can be changed into a prime (3242240303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324224026 + ... + 324224035.

It is an arithmetic number, because the mean of its divisors is an integer number (972672093).

Almost surely, 2^3242240305 is an apocalyptic number.

It is an amenable number.

3242240305 is a deficient number, since it is larger than the sum of its proper divisors (648448067).

3242240305 is an equidigital number, since it uses as much as digits as its factorization.

3242240305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648448066.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 3242240305 is about 56940.6735559038. The cubic root of 3242240305 is about 1480.0682195545.

Adding to 3242240305 its reverse (5030422423), we get a palindrome (8272662728).

It can be divided in two parts, 32422 and 40305, that added together give a palindrome (72727).

The spelling of 3242240305 in words is "three billion, two hundred forty-two million, two hundred forty thousand, three hundred five".