381892 has 24 divisors (see below), whose sum is σ = 798336. Its totient is φ = 156288.

The previous prime is 381859. The next prime is 381911. The reversal of 381892 is 298183.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

381892 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348 + ... + 940.

It is an arithmetic number, because the mean of its divisors is an integer number (33264).

2³⁸¹⁸⁹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399168).

381892 is an abundant number, since it is smaller than the sum of its proper divisors (416444).

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

381892 is a wasteful number, since it uses less digits than its factorization.

381892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 625 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 381892 is about 617.9741094900. The cubic root of 381892 is about 72.5515764588.

The spelling of 381892 in words is "three hundred eighty-one thousand, eight hundred ninety-two".