491338 has 8 divisors (see below), whose sum is σ = 752832. Its totient is φ = 240396.

The previous prime is 491333. The next prime is 491339. The reversal of 491338 is 833194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (491333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2520 + ... + 2707.

It is an arithmetic number, because the mean of its divisors is an integer number (94104).

2⁴⁹¹³³⁸ is an apocalyptic number.

491338 is a deficient number, since it is larger than the sum of its proper divisors (261494).

491338 is a wasteful number, since it uses less digits than its factorization.

491338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276.

The product of its digits is 2592, while the sum is 28.

The square root of 491338 is about 700.9550627537. The cubic root of 491338 is about 78.9090444947.

It can be divided in two parts, 49133 and 8, that added together give a triangular number (49141 = T₃₁₃).

The spelling of 491338 in words is "four hundred ninety-one thousand, three hundred thirty-eight".