491248 has 10 divisors (see below), whose sum is σ = 951824. Its totient is φ = 245616.

The previous prime is 491219. The next prime is 491251. The reversal of 491248 is 842194.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

491248 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 15336 + ... + 15367.

2⁴⁹¹²⁴⁸ is an apocalyptic number.

It is an amenable number.

491248 is a deficient number, since it is larger than the sum of its proper divisors (460576).

491248 is a wasteful number, since it uses less digits than its factorization.

491248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30711 (or 30705 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 491248 is about 700.8908616896. The cubic root of 491248 is about 78.9042261906.

The spelling of 491248 in words is "four hundred ninety-one thousand, two hundred forty-eight".