340678 has 8 divisors (see below), whose sum is σ = 550368. Its totient is φ = 157224.

The previous prime is 340661. The next prime is 340687. The reversal of 340678 is 876043.

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

It is a super-2 number, since 2×340678² = 232122999368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6526 + ... + 6577.

It is an arithmetic number, because the mean of its divisors is an integer number (68796).

2³⁴⁰⁶⁷⁸ is an apocalyptic number.

340678 is a deficient number, since it is larger than the sum of its proper divisors (209690).

340678 is a wasteful number, since it uses less digits than its factorization.

340678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13118.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 340678 is about 583.6762801417. The cubic root of 340678 is about 69.8416830253.

The spelling of 340678 in words is "three hundred forty thousand, six hundred seventy-eight".