489101580 has 144 divisors (see below), whose sum is σ = 1625498784. Its totient is φ = 118056960.

The previous prime is 489101579. The next prime is 489101581. The reversal of 489101580 is 85101984.

It is an interprime number because it is at equal distance from previous prime (489101579) and next prime (489101581).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (489101581) 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 47 ways as a sum of consecutive naturals, for example, 666894 + ... + 667626.

It is an arithmetic number, because the mean of its divisors is an integer number (11288186).

Almost surely, 2^489101580 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 489101580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (812749392).

489101580 is an abundant number, since it is smaller than the sum of its proper divisors (1136397204).

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

489101580 is a wasteful number, since it uses less digits than its factorization.

489101580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 489101580 is about 22115.6410714227. The cubic root of 489101580 is about 787.8913912343.

The spelling of 489101580 in words is "four hundred eighty-nine million, one hundred one thousand, five hundred eighty".