499789998 has 24 divisors (see below), whose sum is σ = 1117811136. Its totient is φ = 161222400.

The previous prime is 499789991. The next prime is 499790063. The reversal of 499789998 is 899987994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499789991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447283 + ... + 448398.

It is an arithmetic number, because the mean of its divisors is an integer number (46575464).

Almost surely, 2^499789998 is an apocalyptic number.

499789998 is an abundant number, since it is smaller than the sum of its proper divisors (618021138).

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

499789998 is a wasteful number, since it uses less digits than its factorization.

499789998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895720 (or 895717 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 72.

The square root of 499789998 is about 22355.9834943578. The cubic root of 499789998 is about 793.5893912917.

The spelling of 499789998 in words is "four hundred ninety-nine million, seven hundred eighty-nine thousand, nine hundred ninety-eight".