491280248 has 8 divisors (see below), whose sum is σ = 921150480. Its totient is φ = 245640120.

The previous prime is 491280241. The next prime is 491280259. The reversal of 491280248 is 842082194.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491280241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30705008 + ... + 30705023.

It is an arithmetic number, because the mean of its divisors is an integer number (115143810).

Almost surely, 2^491280248 is an apocalyptic number.

It is an amenable number.

491280248 is a deficient number, since it is larger than the sum of its proper divisors (429870232).

491280248 is a wasteful number, since it uses less digits than its factorization.

491280248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61410037 (or 61410033 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 491280248 is about 22164.8426116677. The cubic root of 491280248 is about 789.0595271016.

The spelling of 491280248 in words is "four hundred ninety-one million, two hundred eighty thousand, two hundred forty-eight".