489240880 has 80 divisors (see below), whose sum is σ = 1220145120. Its totient is φ = 181868544.

The previous prime is 489240859. The next prime is 489240881. The reversal of 489240880 is 88042984.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (489240881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77524 + ... + 83596.

It is an arithmetic number, because the mean of its divisors is an integer number (15251814).

Almost surely, 2^489240880 is an apocalyptic number.

489240880 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 489240880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610072560).

489240880 is an abundant number, since it is smaller than the sum of its proper divisors (730904240).

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

489240880 is a wasteful number, since it uses less digits than its factorization.

489240880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6158 (or 6152 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 489240880 is about 22118.7902019979. The cubic root of 489240880 is about 787.9661833685.

The spelling of 489240880 in words is "four hundred eighty-nine million, two hundred forty thousand, eight hundred eighty".