491231248 has 10 divisors (see below), whose sum is σ = 951760574. Its totient is φ = 245615616.

The previous prime is 491231233. The next prime is 491231297. The reversal of 491231248 is 842132194.

It can be written as a sum of positive squares in only one way, i.e., 471410944 + 19820304 = 21712^2 + 4452^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15350961 + ... + 15350992.

Almost surely, 2^491231248 is an apocalyptic number.

It is an amenable number.

491231248 is a deficient number, since it is larger than the sum of its proper divisors (460529326).

491231248 is a wasteful number, since it uses less digits than its factorization.

491231248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30701961 (or 30701955 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 491231248 is about 22163.7372299890. The cubic root of 491231248 is about 789.0332927866.

The spelling of 491231248 in words is "four hundred ninety-one million, two hundred thirty-one thousand, two hundred forty-eight".