381495 has 16 divisors (see below), whose sum is σ = 632160. Its totient is φ = 196224.

The previous prime is 381487. The next prime is 381509. The reversal of 381495 is 594183.

It is not a de Polignac number, because 381495 - 2³ = 381487 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 381495.

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, 4 + ... + 873.

It is an arithmetic number, because the mean of its divisors is an integer number (39510).

2³⁸¹⁴⁹⁵ is an apocalyptic number.

381495 is a deficient number, since it is larger than the sum of its proper divisors (250665).

381495 is a wasteful number, since it uses less digits than its factorization.

381495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its digits is 4320, while the sum is 30.

The square root of 381495 is about 617.6528150992. The cubic root of 381495 is about 72.5264271474.

The spelling of 381495 in words is "three hundred eighty-one thousand, four hundred ninety-five".