489157680 has 320 divisors, whose sum is σ = 1759887360. Its totient is φ = 111283200.

The previous prime is 489157661. The next prime is 489157681. The reversal of 489157680 is 86751984.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (489157681) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3519051 + ... + 3519189.

It is an arithmetic number, because the mean of its divisors is an integer number (5499648).

Almost surely, 2^489157680 is an apocalyptic number.

489157680 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 489157680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879943680).

489157680 is an abundant number, since it is smaller than the sum of its proper divisors (1270729680).

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

489157680 is a wasteful number, since it uses less digits than its factorization.

489157680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 489157680 is about 22116.9093681735. The cubic root of 489157680 is about 787.9215138231.

The spelling of 489157680 in words is "four hundred eighty-nine million, one hundred fifty-seven thousand, six hundred eighty".