12669216 has 96 divisors (see below), whose sum is σ = 40279680. Its totient is φ = 3403776.

The previous prime is 12669211. The next prime is 12669229. The reversal of 12669216 is 61296621.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (12669211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10870 + ... + 11978.

It is an arithmetic number, because the mean of its divisors is an integer number (419580).

Almost surely, 2^12669216 is an apocalyptic number.

12669216 is a gapful number since it is divisible by the number (16) 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 12669216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20139840).

12669216 is an abundant number, since it is smaller than the sum of its proper divisors (27610464).

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

12669216 is a wasteful number, since it uses less digits than its factorization.

12669216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146 (or 1138 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 12669216 is about 3559.3842164060. The cubic root of 12669216 is about 233.1219927641.

The spelling of 12669216 in words is "twelve million, six hundred sixty-nine thousand, two hundred sixteen".