12229308 has 72 divisors (see below), whose sum is σ = 38056928. Its totient is φ = 3224448.

The previous prime is 12229289. The next prime is 12229313. The reversal of 12229308 is 80392221.

It is a happy number.

12229308 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1410 + ... + 5142.

Almost surely, 2^12229308 is an apocalyptic number.

12229308 is a gapful number since it is divisible by the number (18) 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 12229308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19028464).

12229308 is an abundant number, since it is smaller than the sum of its proper divisors (25827620).

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

12229308 is a wasteful number, since it uses less digits than its factorization.

12229308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763 (or 3758 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12229308 is about 3497.0427506681. The cubic root of 12229308 is about 230.3919466948.

The spelling of 12229308 in words is "twelve million, two hundred twenty-nine thousand, three hundred eight".