499990506 has 64 divisors (see below), whose sum is σ = 1056706560. Its totient is φ = 157518720.

The previous prime is 499990487. The next prime is 499990523. The reversal of 499990506 is 605099994.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2145766 + ... + 2145998.

It is an arithmetic number, because the mean of its divisors is an integer number (16511040).

Almost surely, 2^499990506 is an apocalyptic number.

499990506 is an abundant number, since it is smaller than the sum of its proper divisors (556716054).

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

499990506 is a wasteful number, since it uses less digits than its factorization.

499990506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 787320, while the sum is 51.

The square root of 499990506 is about 22360.4674816964. The cubic root of 499990506 is about 793.6955023571.

It can be divided in two parts, 499 and 990506, that multiplied together give a palindrome (494262494).

The spelling of 499990506 in words is "four hundred ninety-nine million, nine hundred ninety thousand, five hundred six".