381344286 has 16 divisors (see below), whose sum is σ = 770241168. Its totient is φ = 125856000.

The previous prime is 381344279. The next prime is 381344329. The reversal of 381344286 is 682443183.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 314035 + ... + 315246.

It is an arithmetic number, because the mean of its divisors is an integer number (48140073).

Almost surely, 2^381344286 is an apocalyptic number.

381344286 is an abundant number, since it is smaller than the sum of its proper divisors (388896882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381344286 is a wasteful number, since it uses less digits than its factorization.

381344286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629387.

The product of its digits is 110592, while the sum is 39.

The square root of 381344286 is about 19528.0384575615. The cubic root of 381344286 is about 725.1687508890.

The spelling of 381344286 in words is "three hundred eighty-one million, three hundred forty-four thousand, two hundred eighty-six".