491236996 has 12 divisors (see below), whose sum is σ = 863011548. Its totient is φ = 244662272.

The previous prime is 491236987. The next prime is 491237027. The reversal of 491236996 is 699632194.

It can be written as a sum of positive squares in 2 ways, for example, as 481188096 + 10048900 = 21936^2 + 3170^2 .

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, 237901 + ... + 239956.

It is an arithmetic number, because the mean of its divisors is an integer number (71917629).

Almost surely, 2^491236996 is an apocalyptic number.

It is an amenable number.

491236996 is a deficient number, since it is larger than the sum of its proper divisors (371774552).

491236996 is a wasteful number, since it uses less digits than its factorization.

491236996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478118 (or 478116 counting only the distinct ones).

The product of its digits is 629856, while the sum is 49.

The square root of 491236996 is about 22163.8669008817. The cubic root of 491236996 is about 789.0363703227.

The spelling of 491236996 in words is "four hundred ninety-one million, two hundred thirty-six thousand, nine hundred ninety-six".