381874 has 8 divisors (see below), whose sum is σ = 586908. Its totient is φ = 186240.

The previous prime is 381859. The next prime is 381911. The reversal of 381874 is 478183.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 294849 + 87025 = 543^2 + 295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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

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, 2247 + ... + 2410.

2³⁸¹⁸⁷⁴ is an apocalyptic number.

381874 is a deficient number, since it is larger than the sum of its proper divisors (205034).

381874 is a wasteful number, since it uses less digits than its factorization.

381874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700.

The product of its digits is 5376, while the sum is 31.

The square root of 381874 is about 617.9595456015. The cubic root of 381874 is about 72.5504365650.

The spelling of 381874 in words is "three hundred eighty-one thousand, eight hundred seventy-four".