491857352 has 16 divisors (see below), whose sum is σ = 1053980160. Its totient is φ = 210795984.

The previous prime is 491857337. The next prime is 491857363. The reversal of 491857352 is 253758194.

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, 4391528 + ... + 4391639.

It is an arithmetic number, because the mean of its divisors is an integer number (65873760).

Almost surely, 2^491857352 is an apocalyptic number.

It is an amenable number.

491857352 is an abundant number, since it is smaller than the sum of its proper divisors (562122808).

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

491857352 is a wasteful number, since it uses less digits than its factorization.

491857352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8783180 (or 8783176 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 491857352 is about 22177.8572454599. The cubic root of 491857352 is about 789.3683740519.

The spelling of 491857352 in words is "four hundred ninety-one million, eight hundred fifty-seven thousand, three hundred fifty-two".