489771908 has 12 divisors (see below), whose sum is σ = 857305680. Its totient is φ = 244827432.

The previous prime is 489771907. The next prime is 489771917. The reversal of 489771908 is 809177984.

It is a self number, because there is not a number n which added to its sum of digits gives 489771908.

It is not an unprimeable number, because it can be changed into a prime (489771907) 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 3 ways as a sum of consecutive naturals, for example, 8135 + ... + 32337.

It is an arithmetic number, because the mean of its divisors is an integer number (71442140).

Almost surely, 2^489771908 is an apocalyptic number.

It is an amenable number.

489771908 is a deficient number, since it is larger than the sum of its proper divisors (367533772).

489771908 is a wasteful number, since it uses less digits than its factorization.

489771908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29266 (or 29264 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 53.

The square root of 489771908 is about 22130.7909483597. The cubic root of 489771908 is about 788.2511696430.

The spelling of 489771908 in words is "four hundred eighty-nine million, seven hundred seventy-one thousand, nine hundred eight".