491244368 has 20 divisors (see below), whose sum is σ = 952269780. Its totient is φ = 245497344.

The previous prime is 491244353. The next prime is 491244401. The reversal of 491244368 is 863442194.

It can be written as a sum of positive squares in 2 ways, for example, as 159567424 + 331676944 = 12632^2 + 18212^2 .

It is a congruent number.

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, 30296 + ... + 43592.

It is an arithmetic number, because the mean of its divisors is an integer number (47613489).

Almost surely, 2^491244368 is an apocalyptic number.

It is an amenable number.

491244368 is a deficient number, since it is larger than the sum of its proper divisors (461025412).

491244368 is a wasteful number, since it uses less digits than its factorization.

491244368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15614 (or 15608 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 491244368 is about 22164.0332069775. The cubic root of 491244368 is about 789.0403173293.

The spelling of 491244368 in words is "four hundred ninety-one million, two hundred forty-four thousand, three hundred sixty-eight".