489453828 has 24 divisors (see below), whose sum is σ = 1142460480. Its totient is φ = 163093920.

The previous prime is 489453803. The next prime is 489453857. The reversal of 489453828 is 828354984.

489453828 is a nontrivial binomial coefficient, being equal to C(31288, 2).

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 7 ways as a sum of consecutive naturals, for example, 41718 + ... + 52146.

It is an arithmetic number, because the mean of its divisors is an integer number (47602520).

Almost surely, 2^489453828 is an apocalyptic number.

489453828 is the 31287-th triangular number and also the 15644-th hexagonal number.

It is an amenable number.

489453828 is an abundant number, since it is smaller than the sum of its proper divisors (653006652).

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

489453828 is a wasteful number, since it uses less digits than its factorization.

489453828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14347 (or 14345 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 489453828 is about 22123.6034135491. The cubic root of 489453828 is about 788.0804907172.

The spelling of 489453828 in words is "four hundred eighty-nine million, four hundred fifty-three thousand, eight hundred twenty-eight".