489819520 has 64 divisors (see below), whose sum is σ = 1185211440. Its totient is φ = 193546240.

The previous prime is 489819479. The next prime is 489819529. The reversal of 489819520 is 25918984.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489819529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48510 + ... + 57730.

Almost surely, 2^489819520 is an apocalyptic number.

489819520 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 489819520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592605720).

489819520 is an abundant number, since it is smaller than the sum of its proper divisors (695391920).

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

489819520 is an equidigital number, since it uses as much as digits as its factorization.

489819520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9323 (or 9311 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 489819520 is about 22131.8666180691. The cubic root of 489819520 is about 788.2767114636.

The spelling of 489819520 in words is "four hundred eighty-nine million, eight hundred nineteen thousand, five hundred twenty".