12208032 has 144 divisors (see below), whose sum is σ = 38525760. Its totient is φ = 3649536.

The previous prime is 12208019. The next prime is 12208033. The reversal of 12208032 is 23080221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12207996 and 12208014.

It is not an unprimeable number, because it can be changed into a prime (12208033) 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 23 ways as a sum of consecutive naturals, for example, 125808 + ... + 125904.

It is an arithmetic number, because the mean of its divisors is an integer number (267540).

Almost surely, 2^12208032 is an apocalyptic number.

12208032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12208032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19262880).

12208032 is an abundant number, since it is smaller than the sum of its proper divisors (26317728).

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

12208032 is a wasteful number, since it uses less digits than its factorization.

12208032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12208032 is about 3493.9994275901. Note that the first 3 decimals coincide. The cubic root of 12208032 is about 230.2582606224.

Adding to 12208032 its reverse (23080221), we get a palindrome (35288253).

The spelling of 12208032 in words is "twelve million, two hundred eight thousand, thirty-two".