340351 has 4 divisors (see below), whose sum is σ = 371304. Its totient is φ = 309400.

The previous prime is 340339. The next prime is 340369. The reversal of 340351 is 153043.

340351 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153043 = 11 ⋅13913.

It is a cyclic number.

It is not a de Polignac number, because 340351 - 2⁹ = 339839 is a prime.

It is an Ulam number.

It is a Duffinian number.

340351 is a lucky number.

340351 is a nontrivial repdigit in base 13.

It is a plaindrome in base 9 and base 13.

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340321) 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, 15460 + ... + 15481.

It is an arithmetic number, because the mean of its divisors is an integer number (92826).

2³⁴⁰³⁵¹ is an apocalyptic number.

340351 is a deficient number, since it is larger than the sum of its proper divisors (30953).

340351 is a wasteful number, since it uses less digits than its factorization.

340351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30952.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 340351 is about 583.3960918621. The cubic root of 340351 is about 69.8193300103.

Adding to 340351 its reverse (153043), we get a palindrome (493394).

The spelling of 340351 in words is "three hundred forty thousand, three hundred fifty-one".