491468245 has 8 divisors (see below), whose sum is σ = 591463584. Its totient is φ = 392040144.

The previous prime is 491468239. The next prime is 491468273. The reversal of 491468245 is 542864194.

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

It is a cyclic number.

It is not a de Polignac number, because 491468245 - 2⁵ = 491468213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139899 + ... + 143368.

It is an arithmetic number, because the mean of its divisors is an integer number (73932948).

Almost surely, 2^491468245 is an apocalyptic number.

It is an amenable number.

491468245 is a deficient number, since it is larger than the sum of its proper divisors (99995339).

491468245 is a wasteful number, since it uses less digits than its factorization.

491468245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283619.

The product of its digits is 276480, while the sum is 43.

The square root of 491468245 is about 22169.0830888424. The cubic root of 491468245 is about 789.1601634198.

The spelling of 491468245 in words is "four hundred ninety-one million, four hundred sixty-eight thousand, two hundred forty-five".