343040273 has 2 divisors, whose sum is σ = 343040274. Its totient is φ = 343040272.

The previous prime is 343040179. The next prime is 343040293. The reversal of 343040273 is 372040343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342546064 + 494209 = 18508^2 + 703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343040273 is a prime.

It is not a weakly prime, because it can be changed into another prime (343040293) 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, 171520136 + 171520137.

It is an arithmetic number, because the mean of its divisors is an integer number (171520137).

Almost surely, 2^343040273 is an apocalyptic number.

It is an amenable number.

343040273 is a deficient number, since it is larger than the sum of its proper divisors (1).

343040273 is an equidigital number, since it uses as much as digits as its factorization.

343040273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 343040273 is about 18521.3464143404. The cubic root of 343040273 is about 700.0273955265.

The spelling of 343040273 in words is "three hundred forty-three million, forty thousand, two hundred seventy-three".