381334378 has 8 divisors (see below), whose sum is σ = 605648772. Its totient is φ = 179451456.

The previous prime is 381334367. The next prime is 381334381. The reversal of 381334378 is 873433183.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 374693449 + 6640929 = 19357^2 + 2577^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 381334378.

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, 5607825 + ... + 5607892.

Almost surely, 2^381334378 is an apocalyptic number.

381334378 is a deficient number, since it is larger than the sum of its proper divisors (224314394).

381334378 is a wasteful number, since it uses less digits than its factorization.

381334378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11215736.

The product of its digits is 145152, while the sum is 40.

The square root of 381334378 is about 19527.7847693997. The cubic root of 381334378 is about 725.1624704450.

The spelling of 381334378 in words is "three hundred eighty-one million, three hundred thirty-four thousand, three hundred seventy-eight".