491382 has 12 divisors (see below), whose sum is σ = 1064700. Its totient is φ = 163788.

The previous prime is 491377. The next prime is 491417. The reversal of 491382 is 283194.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13632 + ... + 13667.

It is an arithmetic number, because the mean of its divisors is an integer number (88725).

2⁴⁹¹³⁸² is an apocalyptic number.

491382 is an abundant number, since it is smaller than the sum of its proper divisors (573318).

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

491382 is a wasteful number, since it uses less digits than its factorization.

491382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27307 (or 27304 counting only the distinct ones).

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

The square root of 491382 is about 700.9864478005. The cubic root of 491382 is about 78.9113998959.

It can be divided in two parts, 49 and 1382, that added together give a triangular number (1431 = T₅₃).

The spelling of 491382 in words is "four hundred ninety-one thousand, three hundred eighty-two".