499994990 has 96 divisors (see below), whose sum is σ = 1061786880. Its totient is φ = 168791040.

The previous prime is 499994987. The next prime is 499995037. The reversal of 499994990 is 99499994.

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 2242019 + ... + 2242241.

It is an arithmetic number, because the mean of its divisors is an integer number (11060280).

Almost surely, 2^499994990 is an apocalyptic number.

499994990 is an abundant number, since it is smaller than the sum of its proper divisors (561791890).

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

499994990 is a wasteful number, since it uses less digits than its factorization.

499994990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 8503056, while the sum is 62.

The square root of 499994990 is about 22360.5677477116. The cubic root of 499994990 is about 793.6978750155.

The spelling of 499994990 in words is "four hundred ninety-nine million, nine hundred ninety-four thousand, nine hundred ninety".