380081 has 8 divisors (see below), whose sum is σ = 414120. Its totient is φ = 348816.

The previous prime is 380071. The next prime is 380117. The reversal of 380081 is 180083.

It can be written as a sum of positive squares in 4 ways, for example, as 43681 + 336400 = 209^2 + 580^2 .

It is not a de Polignac number, because 380081 - 2¹⁸ = 117937 is a prime.

It is a super-2 number, since 2×380081² = 288923133122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2111 + ... + 2283.

It is an arithmetic number, because the mean of its divisors is an integer number (51765).

2³⁸⁰⁰⁸¹ is an apocalyptic number.

It is an amenable number.

380081 is a deficient number, since it is larger than the sum of its proper divisors (34039).

380081 is an equidigital number, since it uses as much as digits as its factorization.

380081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 380081 is about 616.5070964717. The cubic root of 380081 is about 72.4367105221.

The spelling of 380081 in words is "three hundred eighty thousand, eighty-one".