12208816 has 40 divisors (see below), whose sum is σ = 24935904. Its totient is φ = 5783040.

The previous prime is 12208813. The next prime is 12208817. The reversal of 12208816 is 61880221.

It is not an unprimeable number, because it can be changed into a prime (12208813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24021 + ... + 24523.

Almost surely, 2^12208816 is an apocalyptic number.

12208816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12208816 is an abundant number, since it is smaller than the sum of its proper divisors (12727088).

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

12208816 is a wasteful number, since it uses less digits than its factorization.

12208816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 12208816 is about 3494.1116181370. Note that the first 3 decimals coincide. The cubic root of 12208816 is about 230.2631895799.

The spelling of 12208816 in words is "twelve million, two hundred eight thousand, eight hundred sixteen".