499800018 has 16 divisors (see below), whose sum is σ = 1000598976. Its totient is φ = 166433520.

The previous prime is 499800001. The next prime is 499800029. The reversal of 499800018 is 810008994.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35038 + ... + 47193.

It is an arithmetic number, because the mean of its divisors is an integer number (62537436).

Almost surely, 2^499800018 is an apocalyptic number.

499800018 is an abundant number, since it is smaller than the sum of its proper divisors (500798958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499800018 is a wasteful number, since it uses less digits than its factorization.

499800018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83249.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 499800018 is about 22356.2075943126. The cubic root of 499800018 is about 793.5946946609.

The spelling of 499800018 in words is "four hundred ninety-nine million, eight hundred thousand, eighteen".