378243966 has 8 divisors (see below), whose sum is σ = 756487944. Its totient is φ = 126081320.

The previous prime is 378243959. The next prime is 378243979. The reversal of 378243966 is 669342873.

378243966 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

378243966 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 31520325 + ... + 31520336.

It is an arithmetic number, because the mean of its divisors is an integer number (94560993).

Almost surely, 2^378243966 is an apocalyptic number.

378243966 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.

378243966 is a wasteful number, since it uses less digits than its factorization.

378243966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63040666.

The product of its digits is 1306368, while the sum is 48.

The square root of 378243966 is about 19448.4952117124. The cubic root of 378243966 is about 723.1981994414.

The spelling of 378243966 in words is "three hundred seventy-eight million, two hundred forty-three thousand, nine hundred sixty-six".