12208736 has 12 divisors (see below), whose sum is σ = 24036012. Its totient is φ = 6104352.

The previous prime is 12208733. The next prime is 12208751. The reversal of 12208736 is 63780221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12208699 and 12208708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190730 + ... + 190793.

It is an arithmetic number, because the mean of its divisors is an integer number (2003001).

Almost surely, 2^12208736 is an apocalyptic number.

12208736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12208736 is a deficient number, since it is larger than the sum of its proper divisors (11827276).

12208736 is an equidigital number, since it uses as much as digits as its factorization.

12208736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381533 (or 381525 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12208736 is about 3494.1001702871. The cubic root of 12208736 is about 230.2626866347.

Adding to 12208736 its reverse (63780221), we get a palindrome (75988957).

The spelling of 12208736 in words is "twelve million, two hundred eight thousand, seven hundred thirty-six".