340478727 has 8 divisors (see below), whose sum is σ = 477864960. Its totient is φ = 215039160.

The previous prime is 340478707. The next prime is 340478741. The reversal of 340478727 is 727874043.

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

It is not a de Polignac number, because 340478727 - 2¹⁶ = 340413191 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340478707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2986599 + ... + 2986712.

It is an arithmetic number, because the mean of its divisors is an integer number (59733120).

Almost surely, 2^340478727 is an apocalyptic number.

340478727 is a deficient number, since it is larger than the sum of its proper divisors (137386233).

340478727 is a wasteful number, since it uses less digits than its factorization.

340478727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973333.

The product of its (nonzero) digits is 263424, while the sum is 42.

The square root of 340478727 is about 18452.0656567226. The cubic root of 340478727 is about 698.2806285597.

The spelling of 340478727 in words is "three hundred forty million, four hundred seventy-eight thousand, seven hundred twenty-seven".