491488480 has 48 divisors (see below), whose sum is σ = 1327021920. Its totient is φ = 168509952.

The previous prime is 491488471. The next prime is 491488493. The reversal of 491488480 is 84884194.

It is a self number, because there is not a number n which added to its sum of digits gives 491488480.

It is a congruent number.

It is an unprimeable number.

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, 218295 + ... + 220534.

It is an arithmetic number, because the mean of its divisors is an integer number (27646290).

Almost surely, 2^491488480 is an apocalyptic number.

491488480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

491488480 is an abundant number, since it is smaller than the sum of its proper divisors (835533440).

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

491488480 is a wasteful number, since it uses less digits than its factorization.

491488480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438851 (or 438843 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 491488480 is about 22169.5394629658. The cubic root of 491488480 is about 789.1709938495.

The spelling of 491488480 in words is "four hundred ninety-one million, four hundred eighty-eight thousand, four hundred eighty".