491500608 has 56 divisors (see below), whose sum is σ = 1304105088. Its totient is φ = 163370496.

The previous prime is 491500601. The next prime is 491500673. The reversal of 491500608 is 806005194.

It is not an unprimeable number, because it can be changed into a prime (491500601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68185 + ... + 75047.

Almost surely, 2^491500608 is an apocalyptic number.

491500608 is a gapful number since it is divisible by the number (48) 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 491500608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652052544).

491500608 is an abundant number, since it is smaller than the sum of its proper divisors (812604480).

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

491500608 is a wasteful number, since it uses less digits than its factorization.

491500608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251 (or 7241 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 491500608 is about 22169.8129897390. The cubic root of 491500608 is about 789.1774850068.

The spelling of 491500608 in words is "four hundred ninety-one million, five hundred thousand, six hundred eight".