343530449 has 2 divisors, whose sum is σ = 343530450. Its totient is φ = 343530448.

The previous prime is 343530409. The next prime is 343530463. The reversal of 343530449 is 944035343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294740224 + 48790225 = 17168^2 + 6985^2 .

It is a cyclic number.

It is not a de Polignac number, because 343530449 - 2⁸ = 343530193 is a prime.

It is not a weakly prime, because it can be changed into another prime (343530409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171765224 + 171765225.

It is an arithmetic number, because the mean of its divisors is an integer number (171765225).

Almost surely, 2^343530449 is an apocalyptic number.

It is an amenable number.

343530449 is a deficient number, since it is larger than the sum of its proper divisors (1).

343530449 is an equidigital number, since it uses as much as digits as its factorization.

343530449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 343530449 is about 18534.5744218744. The cubic root of 343530449 is about 700.3606638017.

The spelling of 343530449 in words is "three hundred forty-three million, five hundred thirty thousand, four hundred forty-nine".