489320520 has 128 divisors (see below), whose sum is σ = 1673965440. Its totient is φ = 113356800.

The previous prime is 489320479. The next prime is 489320543. The reversal of 489320520 is 25023984.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17295 + ... + 35745.

It is an arithmetic number, because the mean of its divisors is an integer number (13077855).

Almost surely, 2^489320520 is an apocalyptic number.

489320520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489320520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (836982720).

489320520 is an abundant number, since it is smaller than the sum of its proper divisors (1184644920).

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

489320520 is a wasteful number, since it uses less digits than its factorization.

489320520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18495 (or 18491 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 489320520 is about 22120.5904080339. The cubic root of 489320520 is about 788.0089368291.

The spelling of 489320520 in words is "four hundred eighty-nine million, three hundred twenty thousand, five hundred twenty".