340042271 has 2 divisors, whose sum is σ = 340042272. Its totient is φ = 340042270.

The previous prime is 340042231. The next prime is 340042273. The reversal of 340042271 is 172240043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340042271 - 2⁶ = 340042207 is a prime.

It is a Sophie Germain prime.

Together with 340042273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340042273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170021135 + 170021136.

It is an arithmetic number, because the mean of its divisors is an integer number (170021136).

Almost surely, 2^340042271 is an apocalyptic number.

340042271 is a deficient number, since it is larger than the sum of its proper divisors (1).

340042271 is an equidigital number, since it uses as much as digits as its factorization.

340042271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 340042271 is about 18440.2351123840. The cubic root of 340042271 is about 697.9821281785.

The spelling of 340042271 in words is "three hundred forty million, forty-two thousand, two hundred seventy-one".