489977280 has 336 divisors, whose sum is σ = 1897197120. Its totient is φ = 115163136.

The previous prime is 489977261. The next prime is 489977287. The reversal of 489977280 is 82779984.

489977280 is a `hidden beast` number, since 489 + 97 + 72 + 8 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489977287) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 860836 + ... + 861404.

It is an arithmetic number, because the mean of its divisors is an integer number (5646420).

Almost surely, 2^489977280 is an apocalyptic number.

489977280 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 489977280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948598560).

489977280 is an abundant number, since it is smaller than the sum of its proper divisors (1407219840).

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

489977280 is a wasteful number, since it uses less digits than its factorization.

489977280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 489977280 is about 22135.4304227408. The cubic root of 489977280 is about 788.3613311927.

The spelling of 489977280 in words is "four hundred eighty-nine million, nine hundred seventy-seven thousand, two hundred eighty".