340291 has 8 divisors (see below), whose sum is σ = 392544. Its totient is φ = 288960.

The previous prime is 340283. The next prime is 340297. The reversal of 340291 is 192043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340291 - 2³ = 340283 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (340297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071 + ... + 1351.

It is an arithmetic number, because the mean of its divisors is an integer number (49068).

2³⁴⁰²⁹¹ is an apocalyptic number.

340291 is a deficient number, since it is larger than the sum of its proper divisors (52253).

340291 is a wasteful number, since it uses less digits than its factorization.

340291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 340291 is about 583.3446665566. The cubic root of 340291 is about 69.8152269853.

The spelling of 340291 in words is "three hundred forty thousand, two hundred ninety-one".