12443276 has 24 divisors (see below), whose sum is σ = 23460864. Its totient is φ = 5757840.

The previous prime is 12443273. The next prime is 12443281. The reversal of 12443276 is 67234421.

It is a super-2 number, since 2×12443276² = 309670235224352, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (977536).

Almost surely, 2^12443276 is an apocalyptic number.

It is an amenable number.

12443276 is a deficient number, since it is larger than the sum of its proper divisors (11017588).

12443276 is a wasteful number, since it uses less digits than its factorization.

12443276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4421 (or 4419 counting only the distinct ones).

The product of its digits is 8064, while the sum is 29.

The square root of 12443276 is about 3527.5027994319. The cubic root of 12443276 is about 231.7278566749.

Adding to 12443276 its reverse (67234421), we get a palindrome (79677697).

The spelling of 12443276 in words is "twelve million, four hundred forty-three thousand, two hundred seventy-six".