12266320 has 80 divisors (see below), whose sum is σ = 31819392. Its totient is φ = 4359680.

The previous prime is 12266311. The next prime is 12266327. The reversal of 12266320 is 2366221.

It is a happy number.

12266320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12266291 and 12266300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12266327) 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, 46509 + ... + 46771.

Almost surely, 2^12266320 is an apocalyptic number.

12266320 is a gapful number since it is divisible by the number (10) 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 12266320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15909696).

12266320 is an abundant number, since it is smaller than the sum of its proper divisors (19553072).

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

12266320 is a wasteful number, since it uses less digits than its factorization.

12266320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 12266320 is about 3502.3306525798. The cubic root of 12266320 is about 230.6241396795.

Subtracting from 12266320 its reverse (2366221), we obtain a palindrome (9900099).

The spelling of 12266320 in words is "twelve million, two hundred sixty-six thousand, three hundred twenty".