12243772 has 12 divisors (see below), whose sum is σ = 21556080. Its totient is φ = 6084896.

The previous prime is 12243743. The next prime is 12243773. The reversal of 12243772 is 27734221.

It is a self number, because there is not a number n which added to its sum of digits gives 12243772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243773) 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, 8497 + ... + 9832.

It is an arithmetic number, because the mean of its divisors is an integer number (1796340).

Almost surely, 2^12243772 is an apocalyptic number.

It is an amenable number.

12243772 is a deficient number, since it is larger than the sum of its proper divisors (9312308).

12243772 is a wasteful number, since it uses less digits than its factorization.

12243772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500 (or 18498 counting only the distinct ones).

The product of its digits is 4704, while the sum is 28.

The square root of 12243772 is about 3499.1101726010. The cubic root of 12243772 is about 230.4827415897.

Adding to 12243772 its reverse (27734221), we get a palindrome (39977993).

The spelling of 12243772 in words is "twelve million, two hundred forty-three thousand, seven hundred seventy-two".