491783016 has 32 divisors (see below), whose sum is σ = 1242138240. Its totient is φ = 162236928.

The previous prime is 491783003. The next prime is 491783027. The reversal of 491783016 is 610387194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103296 + ... + 107951.

It is an arithmetic number, because the mean of its divisors is an integer number (38816820).

Almost surely, 2^491783016 is an apocalyptic number.

It is an amenable number.

491783016 is an abundant number, since it is smaller than the sum of its proper divisors (750355224).

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

491783016 is a wasteful number, since it uses less digits than its factorization.

491783016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211353 (or 211349 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 491783016 is about 22176.1812763154. The cubic root of 491783016 is about 789.3286054458.

The spelling of 491783016 in words is "four hundred ninety-one million, seven hundred eighty-three thousand, sixteen".