499969668 has 24 divisors (see below), whose sum is σ = 1272650400. Its totient is φ = 151505920.

The previous prime is 499969583. The next prime is 499969669. The reversal of 499969668 is 866969994.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 499969599 and 499969608.

It is not an unprimeable number, because it can be changed into a prime (499969669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893693 + ... + 1893956.

It is an arithmetic number, because the mean of its divisors is an integer number (53027100).

Almost surely, 2^499969668 is an apocalyptic number.

It is an amenable number.

499969668 is an abundant number, since it is smaller than the sum of its proper divisors (772680732).

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

499969668 is a wasteful number, since it uses less digits than its factorization.

499969668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787667 (or 3787665 counting only the distinct ones).

The product of its digits is 45349632, while the sum is 66.

The square root of 499969668 is about 22360.0015205724. The cubic root of 499969668 is about 793.6844759766.

The spelling of 499969668 in words is "four hundred ninety-nine million, nine hundred sixty-nine thousand, six hundred sixty-eight".