381814376 has 16 divisors (see below), whose sum is σ = 717958500. Its totient is φ = 190358784.

The previous prime is 381814351. The next prime is 381814387. The reversal of 381814376 is 673418183.

It can be written as a sum of positive squares in 2 ways, for example, as 378302500 + 3511876 = 19450^2 + 1874^2 .

It is an unprimeable number.

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, 65585 + ... + 71168.

Almost surely, 2^381814376 is an apocalyptic number.

It is an amenable number.

381814376 is a deficient number, since it is larger than the sum of its proper divisors (336144124).

381814376 is a wasteful number, since it uses less digits than its factorization.

381814376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137108 (or 137104 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 381814376 is about 19540.0710336478. The cubic root of 381814376 is about 725.4666047451.

The spelling of 381814376 in words is "three hundred eighty-one million, eight hundred fourteen thousand, three hundred seventy-six".