381798 has 12 divisors (see below), whose sum is σ = 827268. Its totient is φ = 127260.

The previous prime is 381793. The next prime is 381817. The reversal of 381798 is 897183.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381791) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 10588 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (68939).

2³⁸¹⁷⁹⁸ is an apocalyptic number.

381798 is an abundant number, since it is smaller than the sum of its proper divisors (445470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381798 is a wasteful number, since it uses less digits than its factorization.

381798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21219 (or 21216 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 381798 is about 617.8980498432. The cubic root of 381798 is about 72.5456232854.

The spelling of 381798 in words is "three hundred eighty-one thousand, seven hundred ninety-eight".