12243472 has 20 divisors (see below), whose sum is σ = 23833296. Its totient is φ = 6092960.

The previous prime is 12243457. The next prime is 12243541. The reversal of 12243472 is 27434221.

It is a happy number.

It is a super-2 number, since 2×12243472² = 299805213229568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1947 + ... + 5317.

Almost surely, 2^12243472 is an apocalyptic number.

It is an amenable number.

12243472 is a deficient number, since it is larger than the sum of its proper divisors (11589824).

12243472 is a wasteful number, since it uses less digits than its factorization.

12243472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606 (or 3600 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 12243472 is about 3499.0673042970. The cubic root of 12243472 is about 230.4808591255.

Adding to 12243472 its reverse (27434221), we get a palindrome (39677693).

The spelling of 12243472 in words is "twelve million, two hundred forty-three thousand, four hundred seventy-two".