489331860 has 24 divisors (see below), whose sum is σ = 1370129376. Its totient is φ = 130488480.

The previous prime is 489331849. The next prime is 489331861. The reversal of 489331860 is 68133984.

It is a happy number.

It is a super-2 number, since 2×489331860² = 478891338422119200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489331861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4077706 + ... + 4077825.

It is an arithmetic number, because the mean of its divisors is an integer number (57088724).

Almost surely, 2^489331860 is an apocalyptic number.

It is an amenable number.

489331860 is an abundant number, since it is smaller than the sum of its proper divisors (880797516).

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

489331860 is a wasteful number, since it uses less digits than its factorization.

489331860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155543 (or 8155541 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 489331860 is about 22120.8467288212. The cubic root of 489331860 is about 788.0150241495.

The spelling of 489331860 in words is "four hundred eighty-nine million, three hundred thirty-one thousand, eight hundred sixty".