380491 has 4 divisors (see below), whose sum is σ = 387000. Its totient is φ = 373984.

The previous prime is 380483. The next prime is 380503. The reversal of 380491 is 194083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 380491 - 2³ = 380483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380441) 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 3 ways as a sum of consecutive naturals, for example, 3166 + ... + 3283.

It is an arithmetic number, because the mean of its divisors is an integer number (96750).

2³⁸⁰⁴⁹¹ is an apocalyptic number.

380491 is a deficient number, since it is larger than the sum of its proper divisors (6509).

380491 is an equidigital number, since it uses as much as digits as its factorization.

380491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6508.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 380491 is about 616.8395253224. The cubic root of 380491 is about 72.4627474096.

The spelling of 380491 in words is "three hundred eighty thousand, four hundred ninety-one".