340539 has 4 divisors (see below), whose sum is σ = 454056. Its totient is φ = 227024.

The previous prime is 340519. The next prime is 340541. The reversal of 340539 is 935043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935043 = 3 ⋅311681.

It is a cyclic number.

It is not a de Polignac number, because 340539 - 2⁸ = 340283 is a prime.

It is a D-number.

340539 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340539.

It is not an unprimeable number, because it can be changed into a prime (340519) 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, 56754 + ... + 56759.

It is an arithmetic number, because the mean of its divisors is an integer number (113514).

2³⁴⁰⁵³⁹ is an apocalyptic number.

340539 is a deficient number, since it is larger than the sum of its proper divisors (113517).

340539 is a wasteful number, since it uses less digits than its factorization.

340539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113516.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 340539 is about 583.5571951403. The cubic root of 340539 is about 69.8321830336.

The spelling of 340539 in words is "three hundred forty thousand, five hundred thirty-nine".