340230678 has 8 divisors (see below), whose sum is σ = 680461368. Its totient is φ = 113410224.

The previous prime is 340230661. The next prime is 340230679. The reversal of 340230678 is 876032043.

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

340230678 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340230679) 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, 28352551 + ... + 28352562.

It is an arithmetic number, because the mean of its divisors is an integer number (85057671).

Almost surely, 2^340230678 is an apocalyptic number.

340230678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340230678 is a wasteful number, since it uses less digits than its factorization.

340230678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56705118.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 340230678 is about 18445.3429894920. The cubic root of 340230678 is about 698.1110145454. Note that the first 3 decimals are identical.

The spelling of 340230678 in words is "three hundred forty million, two hundred thirty thousand, six hundred seventy-eight".