499889018 has 32 divisors (see below), whose sum is σ = 794855424. Its totient is φ = 235472832.

The previous prime is 499889017. The next prime is 499889023. The reversal of 499889018 is 810988994.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (499889017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403496 + ... + 404732.

It is an arithmetic number, because the mean of its divisors is an integer number (24839232).

Almost surely, 2^499889018 is an apocalyptic number.

499889018 is a deficient number, since it is larger than the sum of its proper divisors (294966406).

499889018 is a wasteful number, since it uses less digits than its factorization.

499889018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446.

The product of its (nonzero) digits is 1492992, while the sum is 56.

The square root of 499889018 is about 22358.1980043115. The cubic root of 499889018 is about 793.6417973242.

The spelling of 499889018 in words is "four hundred ninety-nine million, eight hundred eighty-nine thousand, eighteen".