491384 has 16 divisors (see below), whose sum is σ = 928800. Its totient is φ = 243712.

The previous prime is 491377. The next prime is 491417. The reversal of 491384 is 483194.

It is a super-3 number, since 3×491384³ = 355946140713933312, which contains 333 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491384.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784 + ... + 2040.

It is an arithmetic number, because the mean of its divisors is an integer number (58050).

2⁴⁹¹³⁸⁴ is an apocalyptic number.

It is an amenable number.

491384 is a deficient number, since it is larger than the sum of its proper divisors (437416).

491384 is a wasteful number, since it uses less digits than its factorization.

491384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 498 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 491384 is about 700.9878743602. The cubic root of 491384 is about 78.9115069562.

The spelling of 491384 in words is "four hundred ninety-one thousand, three hundred eighty-four".