499998015 has 144 divisors (see below), whose sum is σ = 1045699200. Its totient is φ = 228381120.

The previous prime is 499997963. The next prime is 499998041. The reversal of 499998015 is 510899994.

It is not a de Polignac number, because 499998015 - 2⁷ = 499997887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2793196 + ... + 2793374.

It is an arithmetic number, because the mean of its divisors is an integer number (7261800).

Almost surely, 2^499998015 is an apocalyptic number.

499998015 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

499998015 is an abundant number, since it is smaller than the sum of its proper divisors (545701185).

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

499998015 is a wasteful number, since it uses less digits than its factorization.

499998015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The square root of 499998015 is about 22360.6353890045. The cubic root of 499998015 is about 793.6994756523.

Subtracting from 499998015 its product of nonzero digits (1049760), we obtain a triangular number (498948255 = T₃₁₅₈₉).

The spelling of 499998015 in words is "four hundred ninety-nine million, nine hundred ninety-eight thousand, fifteen".