499308648 has 16 divisors (see below), whose sum is σ = 1248271680. Its totient is φ = 166436208.

The previous prime is 499308637. The next prime is 499308697. The reversal of 499308648 is 846803994.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 499308648.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10402240 + ... + 10402287.

It is an arithmetic number, because the mean of its divisors is an integer number (78016980).

Almost surely, 2^499308648 is an apocalyptic number.

It is an amenable number.

499308648 is an abundant number, since it is smaller than the sum of its proper divisors (748963032).

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

499308648 is a wasteful number, since it uses less digits than its factorization.

499308648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20804536 (or 20804532 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 499308648 is about 22345.2153267763. The cubic root of 499308648 is about 793.3345396179.

The spelling of 499308648 in words is "four hundred ninety-nine million, three hundred eight thousand, six hundred forty-eight".