489382728 has 16 divisors (see below), whose sum is σ = 1223456880. Its totient is φ = 163127568.

The previous prime is 489382727. The next prime is 489382759. The reversal of 489382728 is 827283984.

It is not an unprimeable number, because it can be changed into a prime (489382727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10195450 + ... + 10195497.

It is an arithmetic number, because the mean of its divisors is an integer number (76466055).

Almost surely, 2^489382728 is an apocalyptic number.

It is an amenable number.

489382728 is an abundant number, since it is smaller than the sum of its proper divisors (734074152).

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

489382728 is a wasteful number, since it uses less digits than its factorization.

489382728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20390956 (or 20390952 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 489382728 is about 22121.9964740979. The cubic root of 489382728 is about 788.0423289724.

The spelling of 489382728 in words is "four hundred eighty-nine million, three hundred eighty-two thousand, seven hundred twenty-eight".