489139508 has 48 divisors (see below), whose sum is σ = 1011661056. Its totient is φ = 204005760.

The previous prime is 489139499. The next prime is 489139523. The reversal of 489139508 is 805931984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96485 + ... + 101427.

It is an arithmetic number, because the mean of its divisors is an integer number (21076272).

Almost surely, 2^489139508 is an apocalyptic number.

It is an amenable number.

489139508 is an abundant number, since it is smaller than the sum of its proper divisors (522521548).

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

489139508 is a wasteful number, since it uses less digits than its factorization.

489139508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144 (or 5142 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 489139508 is about 22116.4985474645. The cubic root of 489139508 is about 787.9117567191.

The spelling of 489139508 in words is "four hundred eighty-nine million, one hundred thirty-nine thousand, five hundred eight".