499989804 has 12 divisors (see below), whose sum is σ = 1166642904. Its totient is φ = 166663264.

The previous prime is 499989803. The next prime is 499989827. The reversal of 499989804 is 408989994.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (499989803) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20832897 + ... + 20832920.

It is an arithmetic number, because the mean of its divisors is an integer number (97220242).

Almost surely, 2^499989804 is an apocalyptic number.

It is an amenable number.

499989804 is an abundant number, since it is smaller than the sum of its proper divisors (666653100).

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

499989804 is a wasteful number, since it uses less digits than its factorization.

499989804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41665824 (or 41665822 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 60.

The square root of 499989804 is about 22360.4517843446. The cubic root of 499989804 is about 793.6951309004.

The spelling of 499989804 in words is "four hundred ninety-nine million, nine hundred eighty-nine thousand, eight hundred four".