343342399 has 2 divisors, whose sum is σ = 343342400. Its totient is φ = 343342398.

The previous prime is 343342333. The next prime is 343342403. The reversal of 343342399 is 993243343.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343342399 - 2⁷ = 343342271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343382399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171671199 + 171671200.

It is an arithmetic number, because the mean of its divisors is an integer number (171671200).

Almost surely, 2^343342399 is an apocalyptic number.

343342399 is a deficient number, since it is larger than the sum of its proper divisors (1).

343342399 is an equidigital number, since it uses as much as digits as its factorization.

343342399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 40.

The square root of 343342399 is about 18529.5007757899. The cubic root of 343342399 is about 700.2328470273.

It can be divided in two parts, 34 and 3342399, that added together give a palindrome (3342433).

The spelling of 343342399 in words is "three hundred forty-three million, three hundred forty-two thousand, three hundred ninety-nine".