381914 has 16 divisors (see below), whose sum is σ = 635208. Its totient is φ = 171072.

The previous prime is 381911. The next prime is 381917. The reversal of 381914 is 419183.

It is an interprime number because it is at equal distance from previous prime (381911) and next prime (381917).

It can be written as a sum of positive squares in 4 ways, for example, as 354025 + 27889 = 595^2 + 167^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (381911) 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, 764 + ... + 1160.

2³⁸¹⁹¹⁴ is an apocalyptic number.

381914 is a deficient number, since it is larger than the sum of its proper divisors (253294).

381914 is a wasteful number, since it uses less digits than its factorization.

381914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449.

The product of its digits is 864, while the sum is 26.

The square root of 381914 is about 617.9919093322. The cubic root of 381914 is about 72.5529696136.

The spelling of 381914 in words is "three hundred eighty-one thousand, nine hundred fourteen".