381361108 has 12 divisors (see below), whose sum is σ = 667531872. Its totient is φ = 190637720.

The previous prime is 381361069. The next prime is 381361121. The reversal of 381361108 is 801163183.

It is a self number, because there is not a number n which added to its sum of digits gives 381361108.

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, 17691 + ... + 32797.

It is an arithmetic number, because the mean of its divisors is an integer number (55627656).

Almost surely, 2^381361108 is an apocalyptic number.

It is an amenable number.

381361108 is a deficient number, since it is larger than the sum of its proper divisors (286170764).

381361108 is a wasteful number, since it uses less digits than its factorization.

381361108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21422 (or 21420 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 381361108 is about 19528.4691668344. The cubic root of 381361108 is about 725.1794137028.

The spelling of 381361108 in words is "three hundred eighty-one million, three hundred sixty-one thousand, one hundred eight".