489840784 has 10 divisors (see below), whose sum is σ = 949066550. Its totient is φ = 244920384.

The previous prime is 489840779. The next prime is 489840823. The reversal of 489840784 is 487048984.

It can be written as a sum of positive squares in only one way, i.e., 266995600 + 222845184 = 16340^2 + 14928^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15307509 + ... + 15307540.

It is an arithmetic number, because the mean of its divisors is an integer number (94906655).

Almost surely, 2^489840784 is an apocalyptic number.

It is an amenable number.

489840784 is a deficient number, since it is larger than the sum of its proper divisors (459225766).

489840784 is a wasteful number, since it uses less digits than its factorization.

489840784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30615057 (or 30615051 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The square root of 489840784 is about 22132.3470061356. The cubic root of 489840784 is about 788.2881181639.

The spelling of 489840784 in words is "four hundred eighty-nine million, eight hundred forty thousand, seven hundred eighty-four".