12272008 has 16 divisors (see below), whose sum is σ = 26297280. Its totient is φ = 5259408.

The previous prime is 12272003. The next prime is 12272009. The reversal of 12272008 is 80027221.

It is a self number, because there is not a number n which added to its sum of digits gives 12272008.

It is not an unprimeable number, because it can be changed into a prime (12272003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109516 + ... + 109627.

It is an arithmetic number, because the mean of its divisors is an integer number (1643580).

Almost surely, 2^12272008 is an apocalyptic number.

It is an amenable number.

12272008 is an abundant number, since it is smaller than the sum of its proper divisors (14025272).

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

12272008 is a wasteful number, since it uses less digits than its factorization.

12272008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219156 (or 219152 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 12272008 is about 3503.1425891619. The cubic root of 12272008 is about 230.6597816486.

Adding to 12272008 its reverse (80027221), we get a palindrome (92299229).

The spelling of 12272008 in words is "twelve million, two hundred seventy-two thousand, eight".