489357780 has 48 divisors (see below), whose sum is σ = 1379301504. Its totient is φ = 129628800.

The previous prime is 489357779. The next prime is 489357793. The reversal of 489357780 is 87753984.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17947 + ... + 36066.

It is an arithmetic number, because the mean of its divisors is an integer number (28735448).

Almost surely, 2^489357780 is an apocalyptic number.

It is an amenable number.

489357780 is an abundant number, since it is smaller than the sum of its proper divisors (889943724).

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

489357780 is a wasteful number, since it uses less digits than its factorization.

489357780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54176 (or 54174 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 489357780 is about 22121.4325937540. The cubic root of 489357780 is about 788.0289376715.

The spelling of 489357780 in words is "four hundred eighty-nine million, three hundred fifty-seven thousand, seven hundred eighty".