12294216 has 144 divisors (see below), whose sum is σ = 39227760. Its totient is φ = 3447360.

The previous prime is 12294203. The next prime is 12294221. The reversal of 12294216 is 61249221.

It is a super-2 number, since 2×12294216² = 302295494109312, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12294216.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 285891 + ... + 285933.

It is an arithmetic number, because the mean of its divisors is an integer number (272415).

Almost surely, 2^12294216 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 12294216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19613880).

12294216 is an abundant number, since it is smaller than the sum of its proper divisors (26933544).

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

12294216 is a wasteful number, since it uses less digits than its factorization.

12294216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 78 counting only the distinct ones).

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

The square root of 12294216 is about 3506.3108818244. The cubic root of 12294216 is about 230.7988353814.

It can be divided in two parts, 1229 and 4216, that added together give a palindrome (5445).

The spelling of 12294216 in words is "twelve million, two hundred ninety-four thousand, two hundred sixteen".