499998018 has 16 divisors (see below), whose sum is σ = 1076918976. Its totient is φ = 153845520.

The previous prime is 499997963. The next prime is 499998041. The reversal of 499998018 is 810899994.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3205038 + ... + 3205193.

It is an arithmetic number, because the mean of its divisors is an integer number (67307436).

Almost surely, 2^499998018 is an apocalyptic number.

499998018 is an abundant number, since it is smaller than the sum of its proper divisors (576920958).

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

499998018 is a wasteful number, since it uses less digits than its factorization.

499998018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6410249.

The product of its (nonzero) digits is 1679616, while the sum is 57.

The square root of 499998018 is about 22360.6354560867. The cubic root of 499998018 is about 793.6994772398.

The spelling of 499998018 in words is "four hundred ninety-nine million, nine hundred ninety-eight thousand, eighteen".