499811636 has 48 divisors (see below), whose sum is σ = 942036480. Its totient is φ = 231504000.

The previous prime is 499811623. The next prime is 499811639. The reversal of 499811636 is 636118994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499811639) 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, 470546 + ... + 471606.

It is an arithmetic number, because the mean of its divisors is an integer number (19625760).

Almost surely, 2^499811636 is an apocalyptic number.

It is an amenable number.

499811636 is a deficient number, since it is larger than the sum of its proper divisors (442224844).

499811636 is a wasteful number, since it uses less digits than its factorization.

499811636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 1254 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 499811636 is about 22356.4674311484. The cubic root of 499811636 is about 793.6008437281.

The spelling of 499811636 in words is "four hundred ninety-nine million, eight hundred eleven thousand, six hundred thirty-six".