499389506 has 24 divisors (see below), whose sum is σ = 941001600. Its totient is φ = 194566680.

The previous prime is 499389497. The next prime is 499389557. The reversal of 499389506 is 605983994.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145706 + ... + 149093.

It is an arithmetic number, because the mean of its divisors is an integer number (39208400).

Almost surely, 2^499389506 is an apocalyptic number.

499389506 is a deficient number, since it is larger than the sum of its proper divisors (441612094).

499389506 is a wasteful number, since it uses less digits than its factorization.

499389506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294830 (or 294819 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 499389506 is about 22347.0245446681. The cubic root of 499389506 is about 793.3773614825.

The spelling of 499389506 in words is "four hundred ninety-nine million, three hundred eighty-nine thousand, five hundred six".