499539648 has 42 divisors (see below), whose sum is σ = 1322518564. Its totient is φ = 166409984.

The previous prime is 499539631. The next prime is 499539653. The reversal of 499539648 is 846935994.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308890 + ... + 310502.

Almost surely, 2^499539648 is an apocalyptic number.

499539648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

499539648 is an abundant number, since it is smaller than the sum of its proper divisors (822978916).

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

499539648 is an frugal number, since it uses more digits than its factorization.

499539648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241 (or 1618 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 57.

The square root of 499539648 is about 22350.3836208688. The cubic root of 499539648 is about 793.4568634387.

The spelling of 499539648 in words is "four hundred ninety-nine million, five hundred thirty-nine thousand, six hundred forty-eight".