499994490 has 64 divisors (see below), whose sum is σ = 1225881216. Its totient is φ = 130486272.

The previous prime is 499994489. The next prime is 499994533. The reversal of 499994490 is 94499994.

It is a self number, because there is not a number n which added to its sum of digits gives 499994490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280482 + ... + 282258.

It is an arithmetic number, because the mean of its divisors is an integer number (19154394).

Almost surely, 2^499994490 is an apocalyptic number.

499994490 is an abundant number, since it is smaller than the sum of its proper divisors (725886726).

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

499994490 is a wasteful number, since it uses less digits than its factorization.

499994490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983.

The product of its (nonzero) digits is 3779136, while the sum is 57.

The square root of 499994490 is about 22360.5565673129. The cubic root of 499994490 is about 793.6976104468.

The spelling of 499994490 in words is "four hundred ninety-nine million, nine hundred ninety-four thousand, four hundred ninety".