489145228 has 48 divisors (see below), whose sum is σ = 1017870336. Its totient is φ = 202743360.

The previous prime is 489145219. The next prime is 489145231. The reversal of 489145228 is 822541984.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42325 + ... + 52627.

It is an arithmetic number, because the mean of its divisors is an integer number (21205632).

Almost surely, 2^489145228 is an apocalyptic number.

It is an amenable number.

489145228 is an abundant number, since it is smaller than the sum of its proper divisors (528725108).

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

489145228 is a wasteful number, since it uses less digits than its factorization.

489145228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10414 (or 10412 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 489145228 is about 22116.6278623121. The cubic root of 489145228 is about 787.9148279885.

The spelling of 489145228 in words is "four hundred eighty-nine million, one hundred forty-five thousand, two hundred twenty-eight".