491357424 has 20 divisors (see below), whose sum is σ = 1269340136. Its totient is φ = 163785792.

The previous prime is 491357401. The next prime is 491357497. The reversal of 491357424 is 424753194.

It is a congruent number.

It is an unprimeable 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 in 3 ways as a sum of consecutive naturals, for example, 5118259 + ... + 5118354.

Almost surely, 2^491357424 is an apocalyptic number.

It is an amenable number.

491357424 is an abundant number, since it is smaller than the sum of its proper divisors (777982712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491357424 is a wasteful number, since it uses less digits than its factorization.

491357424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10236624 (or 10236618 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 491357424 is about 22166.5834985908. The cubic root of 491357424 is about 789.1008431459.

The spelling of 491357424 in words is "four hundred ninety-one million, three hundred fifty-seven thousand, four hundred twenty-four".