489257280 has 224 divisors, whose sum is σ = 1828068480. Its totient is φ = 122757120.

The previous prime is 489257273. The next prime is 489257281. The reversal of 489257280 is 82752984.

489257280 is a `hidden beast` number, since 489 + 25 + 72 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489257281) 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 31 ways as a sum of consecutive naturals, for example, 145215 + ... + 148545.

It is an arithmetic number, because the mean of its divisors is an integer number (8161020).

Almost surely, 2^489257280 is an apocalyptic number.

489257280 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 489257280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914034240).

489257280 is an abundant number, since it is smaller than the sum of its proper divisors (1338811200).

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

489257280 is a wasteful number, since it uses less digits than its factorization.

489257280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374 (or 3358 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 489257280 is about 22119.1609244112. The cubic root of 489257280 is about 787.9749878256.

The spelling of 489257280 in words is "four hundred eighty-nine million, two hundred fifty-seven thousand, two hundred eighty".