489564128 has 12 divisors (see below), whose sum is σ = 963829440. Its totient is φ = 244782048.

The previous prime is 489564091. The next prime is 489564137. The reversal of 489564128 is 821465984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7649408 + ... + 7649471.

It is an arithmetic number, because the mean of its divisors is an integer number (80319120).

Almost surely, 2^489564128 is an apocalyptic number.

It is an amenable number.

489564128 is a deficient number, since it is larger than the sum of its proper divisors (474265312).

489564128 is a wasteful number, since it uses less digits than its factorization.

489564128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15298889 (or 15298881 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 489564128 is about 22126.0960858440. The cubic root of 489564128 is about 788.1396850983.

The spelling of 489564128 in words is "four hundred eighty-nine million, five hundred sixty-four thousand, one hundred twenty-eight".