381862 has 16 divisors (see below), whose sum is σ = 650160. Its totient is φ = 166752.

The previous prime is 381859. The next prime is 381911. The reversal of 381862 is 268183.

It is a self number, because there is not a number n which added to its sum of digits gives 381862.

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 7 ways as a sum of consecutive naturals, for example, 108 + ... + 880.

It is an arithmetic number, because the mean of its divisors is an integer number (40635).

2³⁸¹⁸⁶² is an apocalyptic number.

381862 is a deficient number, since it is larger than the sum of its proper divisors (268298).

381862 is a wasteful number, since it uses less digits than its factorization.

381862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807.

The product of its digits is 2304, while the sum is 28.

The square root of 381862 is about 617.9498361518. The cubic root of 381862 is about 72.5496766160.

It can be divided in two parts, 38 and 1862, that multiplied together give a square (70756 = 266²).

The spelling of 381862 in words is "three hundred eighty-one thousand, eight hundred sixty-two".