381894 has 8 divisors (see below), whose sum is σ = 763800. Its totient is φ = 127296.

The previous prime is 381859. The next prime is 381911. The reversal of 381894 is 498183.

381894 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.

381894 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 31819 + ... + 31830.

It is an arithmetic number, because the mean of its divisors is an integer number (95475).

2³⁸¹⁸⁹⁴ is an apocalyptic number.

381894 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.

381894 is a wasteful number, since it uses less digits than its factorization.

381894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63654.

The product of its digits is 6912, while the sum is 33.

The square root of 381894 is about 617.9757276787. The cubic root of 381894 is about 72.5517031114.

It can be divided in two parts, 381 and 894, that added together give a triangular number (1275 = T₅₀).

The spelling of 381894 in words is "three hundred eighty-one thousand, eight hundred ninety-four".