499989816 has 24 divisors (see below), whose sum is σ = 1354139280. Its totient is φ = 166663248.

The previous prime is 499989803. The next prime is 499989827. The reversal of 499989816 is 618989994.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×499989816³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nude number because it is divisible by every one of its digits.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 3472080 + ... + 3472223.

It is an arithmetic number, because the mean of its divisors is an integer number (56422470).

Almost surely, 2^499989816 is an apocalyptic number.

It is an amenable number.

499989816 is an abundant number, since it is smaller than the sum of its proper divisors (854149464).

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

499989816 is a wasteful number, since it uses less digits than its factorization.

499989816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944315 (or 6944308 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 63.

The square root of 499989816 is about 22360.4520526755. The cubic root of 499989816 is about 793.6951372501.

The spelling of 499989816 in words is "four hundred ninety-nine million, nine hundred eighty-nine thousand, eight hundred sixteen".