340869 has 4 divisors (see below), whose sum is σ = 454496. Its totient is φ = 227244.

The previous prime is 340859. The next prime is 340877. The reversal of 340869 is 968043.

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 not a de Polignac number, because 340869 - 2¹² = 336773 is a prime.

It is a super-2 number, since 2×340869² = 232383350322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56809 + ... + 56814.

It is an arithmetic number, because the mean of its divisors is an integer number (113624).

2³⁴⁰⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

340869 is a deficient number, since it is larger than the sum of its proper divisors (113627).

340869 is a wasteful number, since it uses less digits than its factorization.

340869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113626.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 340869 is about 583.8398753083. The cubic root of 340869 is about 69.8547327568.

The spelling of 340869 in words is "three hundred forty thousand, eight hundred sixty-nine".