499946191 has 16 divisors (see below), whose sum is σ = 522547200. Its totient is φ = 477931168.

The previous prime is 499946189. The next prime is 499946219. The reversal of 499946191 is 191649994.

It is a cyclic number.

It is not a de Polignac number, because 499946191 - 2¹ = 499946189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499946131) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1043490 + ... + 1043968.

It is an arithmetic number, because the mean of its divisors is an integer number (32659200).

Almost surely, 2^499946191 is an apocalyptic number.

499946191 is a deficient number, since it is larger than the sum of its proper divisors (22601009).

499946191 is a wasteful number, since it uses less digits than its factorization.

499946191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its digits is 629856, while the sum is 52.

The square root of 499946191 is about 22359.4765368065. The cubic root of 499946191 is about 793.6720528083.

The spelling of 499946191 in words is "four hundred ninety-nine million, nine hundred forty-six thousand, one hundred ninety-one".