491310112 has 48 divisors (see below), whose sum is σ = 1003930200. Its totient is φ = 236400640.

The previous prime is 491310097. The next prime is 491310121. The reversal of 491310112 is 211013194.

It can be written as a sum of positive squares in 4 ways, for example, as 287505936 + 203804176 = 16956^2 + 14276^2 .

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, 360312 + ... + 361672.

Almost surely, 2^491310112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491310112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501965100).

491310112 is an abundant number, since it is smaller than the sum of its proper divisors (512620088).

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

491310112 is a wasteful number, since it uses less digits than its factorization.

491310112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789 (or 1781 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 491310112 is about 22165.5162809261. The cubic root of 491310112 is about 789.0755152579.

The spelling of 491310112 in words is "four hundred ninety-one million, three hundred ten thousand, one hundred twelve".