381395 has 16 divisors (see below), whose sum is σ = 554688. Its totient is φ = 245760.

The previous prime is 381389. The next prime is 381401. The reversal of 381395 is 593183.

381395 = T₄₉ + T₅₀ + ... + T₁₃₃.

It is an interprime number because it is at equal distance from previous prime (381389) and next prime (381401).

It is a de Polignac number, because none of the positive numbers 2^k-381395 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 381395.

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 15 ways as a sum of consecutive naturals, for example, 275 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (34668).

2³⁸¹³⁹⁵ is an apocalyptic number.

381395 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

381395 is a deficient number, since it is larger than the sum of its proper divisors (173293).

381395 is a wasteful number, since it uses less digits than its factorization.

381395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670.

The product of its digits is 3240, while the sum is 29.

The square root of 381395 is about 617.5718581671. The cubic root of 381395 is about 72.5200895576.

The spelling of 381395 in words is "three hundred eighty-one thousand, three hundred ninety-five".