489502491 has 32 divisors (see below), whose sum is σ = 728762880. Its totient is φ = 290822400.

The previous prime is 489502483. The next prime is 489502523. The reversal of 489502491 is 194205984.

It is not a de Polignac number, because 489502491 - 2³ = 489502483 is a prime.

It is a super-2 number, since 2×489502491² = 479225377390410162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489502441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76911 + ... + 83031.

It is an arithmetic number, because the mean of its divisors is an integer number (22773840).

Almost surely, 2^489502491 is an apocalyptic number.

489502491 is a deficient number, since it is larger than the sum of its proper divisors (239260389).

489502491 is a wasteful number, since it uses less digits than its factorization.

489502491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6227.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 489502491 is about 22124.7031844497. The cubic root of 489502491 is about 788.1066076444.

The spelling of 489502491 in words is "four hundred eighty-nine million, five hundred two thousand, four hundred ninety-one".