12281208 has 64 divisors (see below), whose sum is σ = 33592320. Its totient is φ = 3724800.

The previous prime is 12281207. The next prime is 12281221. The reversal of 12281208 is 80218221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12281207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12163 + ... + 13133.

It is an arithmetic number, because the mean of its divisors is an integer number (524880).

Almost surely, 2^12281208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12281208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16796160).

12281208 is an abundant number, since it is smaller than the sum of its proper divisors (21311112).

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

12281208 is a wasteful number, since it uses less digits than its factorization.

12281208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 12281208 is about 3504.4554498524. The cubic root of 12281208 is about 230.7174070979.

Adding to 12281208 its reverse (80218221), we get a palindrome (92499429).

The spelling of 12281208 in words is "twelve million, two hundred eighty-one thousand, two hundred eight".