3240443309 has 2 divisors, whose sum is σ = 3240443310. Its totient is φ = 3240443308.

The previous prime is 3240443291. The next prime is 3240443333. The reversal of 3240443309 is 9033440423.

3240443309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2619187684 + 621255625 = 51178^2 + 24925^2 .

It is a cyclic number.

It is not a de Polignac number, because 3240443309 - 2²⁴ = 3223666093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3240443359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620221654 + 1620221655.

It is an arithmetic number, because the mean of its divisors is an integer number (1620221655).

Almost surely, 2^3240443309 is an apocalyptic number.

It is an amenable number.

3240443309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3240443309 is an equidigital number, since it uses as much as digits as its factorization.

3240443309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 3240443309 is about 56924.8918224708. The cubic root of 3240443309 is about 1479.7947288050.

The spelling of 3240443309 in words is "three billion, two hundred forty million, four hundred forty-three thousand, three hundred nine".