499999842 has 12 divisors (see below), whose sum is σ = 1083333030. Its totient is φ = 166666608.

The previous prime is 499999831. The next prime is 499999847. The reversal of 499999842 is 248999994.

It can be written as a sum of positive squares in only one way, i.e., 484484121 + 15515721 = 22011^2 + 3939^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 499999842.

It is not an unprimeable number, because it can be changed into a prime (499999847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13888867 + ... + 13888902.

Almost surely, 2^499999842 is an apocalyptic number.

499999842 is an abundant number, since it is smaller than the sum of its proper divisors (583333188).

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

499999842 is a wasteful number, since it uses less digits than its factorization.

499999842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27777777 (or 27777774 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

The square root of 499999842 is about 22360.6762420102. The cubic root of 499999842 is about 793.7004423810.

The spelling of 499999842 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred forty-two".