382491 has 6 divisors (see below), whose sum is σ = 552500. Its totient is φ = 254988.

The previous prime is 382463. The next prime is 382493. The reversal of 382491 is 194283.

382491 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 382491 - 2⁶ = 382427 is a prime.

It is a Duffinian number.

382491 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (382493) 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 5 ways as a sum of consecutive naturals, for example, 21241 + ... + 21258.

2³⁸²⁴⁹¹ is an apocalyptic number.

382491 is a deficient number, since it is larger than the sum of its proper divisors (170009).

382491 is a wasteful number, since it uses less digits than its factorization.

382491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42505 (or 42502 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 382491 is about 618.4585677311. The cubic root of 382491 is about 72.5894891780.

The spelling of 382491 in words is "three hundred eighty-two thousand, four hundred ninety-one".