499209650 has 48 divisors (see below), whose sum is σ = 951026184. Its totient is φ = 194887680.

The previous prime is 499209643. The next prime is 499209653. The reversal of 499209650 is 56902994.

It is a Cunningham number, because it is equal to 22343²+1.

It can be written as a sum of positive squares in 12 ways, for example, as 359898841 + 139310809 = 18971^2 + 11803^2 .

It is not an unprimeable number, because it can be changed into a prime (499209653) 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, 680684 + ... + 681416.

Almost surely, 2^499209650 is an apocalyptic number.

499209650 is a deficient number, since it is larger than the sum of its proper divisors (451816534).

499209650 is a wasteful number, since it uses less digits than its factorization.

499209650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 499209650 is about 22343.0000223784. Note that the first 4 decimals coincide. The cubic root of 499209650 is about 793.2821046332.

The spelling of 499209650 in words is "four hundred ninety-nine million, two hundred nine thousand, six hundred fifty".