491244360 has 64 divisors (see below), whose sum is σ = 1481518080. Its totient is φ = 130306560.

The previous prime is 491244353. The next prime is 491244401. The reversal of 491244360 is 63442194.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12204 + ... + 33636.

It is an arithmetic number, because the mean of its divisors is an integer number (23148720).

Almost surely, 2^491244360 is an apocalyptic number.

491244360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491244360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740759040).

491244360 is an abundant number, since it is smaller than the sum of its proper divisors (990273720).

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

491244360 is a wasteful number, since it uses less digits than its factorization.

491244360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21638 (or 21634 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 491244360 is about 22164.0330265049. The cubic root of 491244360 is about 789.0403130461.

The spelling of 491244360 in words is "four hundred ninety-one million, two hundred forty-four thousand, three hundred sixty".