12366428 has 6 divisors (see below), whose sum is σ = 21641256. Its totient is φ = 6183212.

The previous prime is 12366421. The next prime is 12366449. The reversal of 12366428 is 82466321.

It is a junction number, because it is equal to n+sod(n) for n = 12366394 and 12366403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12366421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1545800 + ... + 1545807.

It is an arithmetic number, because the mean of its divisors is an integer number (3606876).

Almost surely, 2^12366428 is an apocalyptic number.

It is an amenable number.

12366428 is a deficient number, since it is larger than the sum of its proper divisors (9274828).

12366428 is a wasteful number, since it uses less digits than its factorization.

12366428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091611 (or 3091609 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 12366428 is about 3516.5932377800. The cubic root of 12366428 is about 231.2498312149.

The spelling of 12366428 in words is "twelve million, three hundred sixty-six thousand, four hundred twenty-eight".