381140 has 48 divisors (see below), whose sum is σ = 907200. Its totient is φ = 133632.

The previous prime is 381103. The next prime is 381167. The reversal of 381140 is 41183.

It is a happy number.

381140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6431 + ... + 6489.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2³⁸¹¹⁴⁰ 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 381140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453600).

381140 is an abundant number, since it is smaller than the sum of its proper divisors (526060).

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

381140 is a wasteful number, since it uses less digits than its factorization.

381140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 381140 is about 617.3653699391. The cubic root of 381140 is about 72.5039236878.

The spelling of 381140 in words is "three hundred eighty-one thousand, one hundred forty".