12299816 has 16 divisors (see below), whose sum is σ = 23498100. Its totient is φ = 6033664.

The previous prime is 12299813. The next prime is 12299863. The reversal of 12299816 is 61899221.

It can be written as a sum of positive squares in 2 ways, for example, as 12180100 + 119716 = 3490^2 + 346^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12299816.

It is not an unprimeable number, because it can be changed into a prime (12299813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14081 + ... + 14928.

Almost surely, 2^12299816 is an apocalyptic number.

It is an amenable number.

12299816 is a deficient number, since it is larger than the sum of its proper divisors (11198284).

12299816 is a wasteful number, since it uses less digits than its factorization.

12299816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29068 (or 29064 counting only the distinct ones).

The product of its digits is 15552, while the sum is 38.

The square root of 12299816 is about 3507.1093510183. The cubic root of 12299816 is about 230.8338729223.

The spelling of 12299816 in words is "twelve million, two hundred ninety-nine thousand, eight hundred sixteen".