3240449 has 2 divisors, whose sum is σ = 3240450. Its totient is φ = 3240448.

The previous prime is 3240409. The next prime is 3240451. The reversal of 3240449 is 9440423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3214849 + 25600 = 1793^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 3240449 - 2²⁰ = 2191873 is a prime.

Together with 3240451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3240409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620224 + 1620225.

It is an arithmetic number, because the mean of its divisors is an integer number (1620225).

Almost surely, 2^3240449 is an apocalyptic number.

It is an amenable number.

3240449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3240449 is an equidigital number, since it uses as much as digits as its factorization.

3240449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 3240449 is about 1800.1247179015. The cubic root of 3240449 is about 147.9795595097.

Subtracting from 3240449 its sum of digits (26), we obtain a palindrome (3240423).

The spelling of 3240449 in words is "three million, two hundred forty thousand, four hundred forty-nine".