491385046 has 8 divisors (see below), whose sum is σ = 747174744. Its totient is φ = 242326800.

The previous prime is 491385031. The next prime is 491385067. The reversal of 491385046 is 640583194.

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

It is a congruent number.

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, 1682680 + ... + 1682971.

It is an arithmetic number, because the mean of its divisors is an integer number (93396843).

Almost surely, 2^491385046 is an apocalyptic number.

491385046 is a deficient number, since it is larger than the sum of its proper divisors (255789698).

491385046 is a wasteful number, since it uses less digits than its factorization.

491385046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365726.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 491385046 is about 22167.2065448040. The cubic root of 491385046 is about 789.1156294868.

The spelling of 491385046 in words is "four hundred ninety-one million, three hundred eighty-five thousand, forty-six".