500016690 has 48 divisors (see below), whose sum is σ = 1301286168. Its totient is φ = 133210368.

The previous prime is 500016679. The next prime is 500016697. The reversal of 500016690 is 96610005.

It can be written as a sum of positive squares in 4 ways, for example, as 419717169 + 80299521 = 20487^2 + 8961^2 .

It is a super-2 number, since 2×500016690² = 500033380557112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (500016697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127032 + ... + 130908.

Almost surely, 2^500016690 is an apocalyptic number.

500016690 is an abundant number, since it is smaller than the sum of its proper divisors (801269478).

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

500016690 is a wasteful number, since it uses less digits than its factorization.

500016690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323 (or 5320 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 500016690 is about 22361.0529716290. The cubic root of 500016690 is about 793.7093571270.

Adding to 500016690 its reverse (96610005), we get a palindrome (596626695).

The spelling of 500016690 in words is "five hundred million, sixteen thousand, six hundred ninety".