489882728 has 8 divisors (see below), whose sum is σ = 918530130. Its totient is φ = 244941360.

The previous prime is 489882697. The next prime is 489882749. The reversal of 489882728 is 827288984.

It can be written as a sum of positive squares in only one way, i.e., 297838564 + 192044164 = 17258^2 + 13858^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30617663 + ... + 30617678.

Almost surely, 2^489882728 is an apocalyptic number.

It is an amenable number.

489882728 is a deficient number, since it is larger than the sum of its proper divisors (428647402).

489882728 is a wasteful number, since it uses less digits than its factorization.

489882728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61235347 (or 61235343 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 56.

The square root of 489882728 is about 22133.2945581990. The cubic root of 489882728 is about 788.3106173203.

The spelling of 489882728 in words is "four hundred eighty-nine million, eight hundred eighty-two thousand, seven hundred twenty-eight".