499961668 has 24 divisors (see below), whose sum is σ = 930490400. Its totient is φ = 234379008.

The previous prime is 499961659. The next prime is 499961669. The reversal of 499961668 is 866169994.

It is not an unprimeable number, because it can be changed into a prime (499961669) 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, 26538 + ... + 41281.

Almost surely, 2^499961668 is an apocalyptic number.

It is an amenable number.

499961668 is a deficient number, since it is larger than the sum of its proper divisors (430528732).

499961668 is a wasteful number, since it uses less digits than its factorization.

499961668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67939 (or 67937 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 58.

The square root of 499961668 is about 22359.8226289924. The cubic root of 499961668 is about 793.6802427134.

The spelling of 499961668 in words is "four hundred ninety-nine million, nine hundred sixty-one thousand, six hundred sixty-eight".