489203988 has 96 divisors (see below), whose sum is σ = 1410748416. Its totient is φ = 128483712.

The previous prime is 489203983. The next prime is 489203989. The reversal of 489203988 is 889302984.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 489203988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489203983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308245 + ... + 309827.

It is an arithmetic number, because the mean of its divisors is an integer number (14695296).

Almost surely, 2^489203988 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 489203988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705374208).

489203988 is an abundant number, since it is smaller than the sum of its proper divisors (921544428).

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

489203988 is a wasteful number, since it uses less digits than its factorization.

489203988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 489203988 is about 22117.9562346976. The cubic root of 489203988 is about 787.9463769157.

The spelling of 489203988 in words is "four hundred eighty-nine million, two hundred three thousand, nine hundred eighty-eight".