491312 has 10 divisors (see below), whose sum is σ = 951948. Its totient is φ = 245648.

The previous prime is 491299. The next prime is 491327. The reversal of 491312 is 213194.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15338 + ... + 15369.

2⁴⁹¹³¹² is an apocalyptic number.

It is an amenable number.

491312 is a deficient number, since it is larger than the sum of its proper divisors (460636).

491312 is a wasteful number, since it uses less digits than its factorization.

491312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30715 (or 30709 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 491312 is about 700.9365163836. The cubic root of 491312 is about 78.9076526006.

The spelling of 491312 in words is "four hundred ninety-one thousand, three hundred twelve".