340178938 has 8 divisors (see below), whose sum is σ = 556656480. Its totient is φ = 154626780.

The previous prime is 340178933. The next prime is 340178941. The reversal of 340178938 is 839871043.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 340178894 and 340178903.

It is not an unprimeable number, because it can be changed into a prime (340178933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7731318 + ... + 7731361.

It is an arithmetic number, because the mean of its divisors is an integer number (69582060).

Almost surely, 2^340178938 is an apocalyptic number.

340178938 is a deficient number, since it is larger than the sum of its proper divisors (216477542).

340178938 is a wasteful number, since it uses less digits than its factorization.

340178938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15462692.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 340178938 is about 18443.9404141306. The cubic root of 340178938 is about 698.0756247375.

The spelling of 340178938 in words is "three hundred forty million, one hundred seventy-eight thousand, nine hundred thirty-eight".