340542271 has 4 divisors (see below), whose sum is σ = 341007592. Its totient is φ = 340076952.

The previous prime is 340542259. The next prime is 340542281. The reversal of 340542271 is 172245043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340542271 - 2⁹ = 340541759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340542211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231561 + ... + 233026.

It is an arithmetic number, because the mean of its divisors is an integer number (85251898).

Almost surely, 2^340542271 is an apocalyptic number.

340542271 is a deficient number, since it is larger than the sum of its proper divisors (465321).

340542271 is an equidigital number, since it uses as much as digits as its factorization.

340542271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465320.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 340542271 is about 18453.7874432324. The cubic root of 340542271 is about 698.3240662066.

The spelling of 340542271 in words is "three hundred forty million, five hundred forty-two thousand, two hundred seventy-one".