499665388 has 6 divisors (see below), whose sum is σ = 874414436. Its totient is φ = 249832692.

The previous prime is 499665373. The next prime is 499665407. The reversal of 499665388 is 883566994.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62458170 + ... + 62458177.

Almost surely, 2^499665388 is an apocalyptic number.

It is an amenable number.

499665388 is a deficient number, since it is larger than the sum of its proper divisors (374749048).

499665388 is a wasteful number, since it uses less digits than its factorization.

499665388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124916351 (or 124916349 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 58.

The square root of 499665388 is about 22353.1963709891. The cubic root of 499665388 is about 793.5234319928.

The spelling of 499665388 in words is "four hundred ninety-nine million, six hundred sixty-five thousand, three hundred eighty-eight".