342005329 has 2 divisors, whose sum is σ = 342005330. Its totient is φ = 342005328.

The previous prime is 342005327. The next prime is 342005351. The reversal of 342005329 is 923500243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288320400 + 53684929 = 16980^2 + 7327^2 .

It is a cyclic number.

It is not a de Polignac number, because 342005329 - 2¹ = 342005327 is a prime.

Together with 342005327, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 342005297 and 342005306.

It is not a weakly prime, because it can be changed into another prime (342005327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171002664 + 171002665.

It is an arithmetic number, because the mean of its divisors is an integer number (171002665).

Almost surely, 2^342005329 is an apocalyptic number.

It is an amenable number.

342005329 is a deficient number, since it is larger than the sum of its proper divisors (1).

342005329 is an equidigital number, since it uses as much as digits as its factorization.

342005329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 342005329 is about 18493.3860880045. The cubic root of 342005329 is about 699.3226979325.

The spelling of 342005329 in words is "three hundred forty-two million, five thousand, three hundred twenty-nine".