342080209 has 2 divisors, whose sum is σ = 342080210. Its totient is φ = 342080208.

The previous prime is 342080153. The next prime is 342080213. The reversal of 342080209 is 902080243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298321984 + 43758225 = 17272^2 + 6615^2 .

It is a cyclic number.

It is not a de Polignac number, because 342080209 - 2⁹ = 342079697 is a prime.

It is not a weakly prime, because it can be changed into another prime (342080269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171040104 + 171040105.

It is an arithmetic number, because the mean of its divisors is an integer number (171040105).

Almost surely, 2^342080209 is an apocalyptic number.

It is an amenable number.

342080209 is a deficient number, since it is larger than the sum of its proper divisors (1).

342080209 is an equidigital number, since it uses as much as digits as its factorization.

342080209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 342080209 is about 18495.4104847662. The cubic root of 342080209 is about 699.3737317010.

The spelling of 342080209 in words is "three hundred forty-two million, eighty thousand, two hundred nine".