3642449 has 2 divisors, whose sum is σ = 3642450. Its totient is φ = 3642448.

The previous prime is 3642427. The next prime is 3642451. The reversal of 3642449 is 9442463.

3642449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3356224 + 286225 = 1832^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 3642449 - 2¹⁶ = 3576913 is a prime.

It is a Sophie Germain prime.

Together with 3642451, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3642479) 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 as a sum of consecutive naturals, namely, 1821224 + 1821225.

It is an arithmetic number, because the mean of its divisors is an integer number (1821225).

Almost surely, 2^3642449 is an apocalyptic number.

It is an amenable number.

3642449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642449 is an equidigital number, since it uses as much as digits as its factorization.

3642449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 3642449 is about 1908.5201073083. The cubic root of 3642449 is about 153.8619243641.

The spelling of 3642449 in words is "three million, six hundred forty-two thousand, four hundred forty-nine".