491494 has 4 divisors (see below), whose sum is σ = 737244. Its totient is φ = 245746.

The previous prime is 491489. The next prime is 491497. The reversal of 491494 is 494194.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122872 + ... + 122875.

It is an arithmetic number, because the mean of its divisors is an integer number (184311).

2⁴⁹¹⁴⁹⁴ is an apocalyptic number.

491494 is a deficient number, since it is larger than the sum of its proper divisors (245750).

491494 is a wasteful number, since it uses less digits than its factorization.

491494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245749.

The product of its digits is 5184, while the sum is 31.

The square root of 491494 is about 701.0663306706. The cubic root of 491494 is about 78.9173948281.

The spelling of 491494 in words is "four hundred ninety-one thousand, four hundred ninety-four".