489431968 has 48 divisors (see below), whose sum is σ = 1008806400. Its totient is φ = 233452800.

The previous prime is 489431953. The next prime is 489432007. The reversal of 489431968 is 869134984.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66958 + ... + 73906.

It is an arithmetic number, because the mean of its divisors is an integer number (21016800).

Almost surely, 2^489431968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489431968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504403200).

489431968 is an abundant number, since it is smaller than the sum of its proper divisors (519374432).

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

489431968 is a wasteful number, since it uses less digits than its factorization.

489431968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061 (or 7053 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 489431968 is about 22123.1093655481. The cubic root of 489431968 is about 788.0687581185.

The spelling of 489431968 in words is "four hundred eighty-nine million, four hundred thirty-one thousand, nine hundred sixty-eight".