499319018 has 16 divisors (see below), whose sum is σ = 817543584. Its totient is φ = 226830960.

The previous prime is 499319017. The next prime is 499319021. The reversal of 499319018 is 810913994.

It is a self number, because there is not a number n which added to its sum of digits gives 499319018.

It is not an unprimeable number, because it can be changed into a prime (499319011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38996 + ... + 50192.

It is an arithmetic number, because the mean of its divisors is an integer number (51096474).

Almost surely, 2^499319018 is an apocalyptic number.

499319018 is a deficient number, since it is larger than the sum of its proper divisors (318224566).

499319018 is a wasteful number, since it uses less digits than its factorization.

499319018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13237.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 499319018 is about 22345.4473662981. The cubic root of 499319018 is about 793.3400317601.

The spelling of 499319018 in words is "four hundred ninety-nine million, three hundred nineteen thousand, eighteen".