12224439 has 10 divisors (see below), whose sum is σ = 18261320. Its totient is φ = 8149572.

The previous prime is 12224413. The next prime is 12224473. The reversal of 12224439 is 93442221.

12224439 is a `hidden beast` number, since 1 + 2 + 224 + 439 = 666.

It is not a de Polignac number, because 12224439 - 2⁹ = 12223927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223439) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 75379 + ... + 75540.

It is an arithmetic number, because the mean of its divisors is an integer number (1826132).

Almost surely, 2^12224439 is an apocalyptic number.

12224439 is a deficient number, since it is larger than the sum of its proper divisors (6036881).

12224439 is an equidigital number, since it uses as much as digits as its factorization.

12224439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150931 (or 150922 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 12224439 is about 3496.3465217281. The cubic root of 12224439 is about 230.3613664064.

The spelling of 12224439 in words is "twelve million, two hundred twenty-four thousand, four hundred thirty-nine".