489689280 has 336 divisors, whose sum is σ = 1834835040. Its totient is φ = 122923008.

The previous prime is 489689279. The next prime is 489689351. The reversal of 489689280 is 82986984.

489689280 is a `hidden beast` number, since 489 + 6 + 89 + 2 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3118962 + ... + 3119118.

Almost surely, 2^489689280 is an apocalyptic number.

489689280 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 489689280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (917417520).

489689280 is an abundant number, since it is smaller than the sum of its proper divisors (1345145760).

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

489689280 is a wasteful number, since it uses less digits than its factorization.

489689280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 489689280 is about 22128.9240587969. The cubic root of 489689280 is about 788.2068392927.

The spelling of 489689280 in words is "four hundred eighty-nine million, six hundred eighty-nine thousand, two hundred eighty".