499785636 has 48 divisors (see below), whose sum is σ = 1341286016. Its totient is φ = 141882624.

The previous prime is 499785631. The next prime is 499785647. The reversal of 499785636 is 636587994.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (499785631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5761 + ... + 32136.

Almost surely, 2^499785636 is an apocalyptic number.

It is an amenable number.

499785636 is an abundant number, since it is smaller than the sum of its proper divisors (841500380).

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

499785636 is a wasteful number, since it uses less digits than its factorization.

499785636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38068 (or 38066 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The square root of 499785636 is about 22355.8859363703. The cubic root of 499785636 is about 793.5870825574.

The spelling of 499785636 in words is "four hundred ninety-nine million, seven hundred eighty-five thousand, six hundred thirty-six".