499643406 has 12 divisors (see below), whose sum is σ = 1082560752. Its totient is φ = 166547796.

The previous prime is 499643393. The next prime is 499643453. The reversal of 499643406 is 604346994.

It is a happy 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 5 ways as a sum of consecutive naturals, for example, 13878966 + ... + 13879001.

It is an arithmetic number, because the mean of its divisors is an integer number (90213396).

Almost surely, 2^499643406 is an apocalyptic number.

499643406 is an abundant number, since it is smaller than the sum of its proper divisors (582917346).

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

499643406 is a wasteful number, since it uses less digits than its factorization.

499643406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27757975 (or 27757972 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 499643406 is about 22352.7046685630. The cubic root of 499643406 is about 793.5117952132.

The spelling of 499643406 in words is "four hundred ninety-nine million, six hundred forty-three thousand, four hundred six".