340829 has 4 divisors (see below), whose sum is σ = 345984. Its totient is φ = 335676.

The previous prime is 340819. The next prime is 340849. The reversal of 340829 is 928043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 340829 - 2⁸ = 340573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340798 and 340807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2477 + ... + 2610.

It is an arithmetic number, because the mean of its divisors is an integer number (86496).

2³⁴⁰⁸²⁹ is an apocalyptic number.

It is an amenable number.

340829 is a deficient number, since it is larger than the sum of its proper divisors (5155).

340829 is an equidigital number, since it uses as much as digits as its factorization.

340829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 340829 is about 583.8056183354. The cubic root of 340829 is about 69.8520002324.

The spelling of 340829 in words is "three hundred forty thousand, eight hundred twenty-nine".