381854 has 16 divisors (see below), whose sum is σ = 662256. Its totient is φ = 163200.

The previous prime is 381853. The next prime is 381859. The reversal of 381854 is 458183.

381854 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137 + ... + 884.

It is an arithmetic number, because the mean of its divisors is an integer number (41391).

2³⁸¹⁸⁵⁴ is an apocalyptic number.

381854 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

381854 is a deficient number, since it is larger than the sum of its proper divisors (280402).

381854 is a wasteful number, since it uses less digits than its factorization.

381854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051.

The product of its digits is 3840, while the sum is 29.

The square root of 381854 is about 617.9433631005. The cubic root of 381854 is about 72.5491699744.

The spelling of 381854 in words is "three hundred eighty-one thousand, eight hundred fifty-four".