381016 has 16 divisors (see below), whose sum is σ = 723240. Its totient is φ = 188160.

The previous prime is 381011. The next prime is 381019. The reversal of 381016 is 610183.

381016 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 380984 and 381002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531 + ... + 1021.

2³⁸¹⁰¹⁶ is an apocalyptic number.

It is an amenable number.

381016 is a deficient number, since it is larger than the sum of its proper divisors (342224).

381016 is a wasteful number, since it uses less digits than its factorization.

381016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 381016 is about 617.2649350158. The cubic root of 381016 is about 72.4960600316.

Adding to 381016 its reverse (610183), we get a palindrome (991199).

The spelling of 381016 in words is "three hundred eighty-one thousand, sixteen".