12320426 has 8 divisors (see below), whose sum is σ = 18507744. Its totient is φ = 6151180.

The previous prime is 12320411. The next prime is 12320431. The reversal of 12320426 is 62402321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12320398 and 12320407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2660 + ... + 5631.

It is an arithmetic number, because the mean of its divisors is an integer number (2313468).

Almost surely, 2^12320426 is an apocalyptic number.

12320426 is a deficient number, since it is larger than the sum of its proper divisors (6187318).

12320426 is an equidigital number, since it uses as much as digits as its factorization.

12320426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9036.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 12320426 is about 3510.0464384392. The cubic root of 12320426 is about 230.9627320674.

Adding to 12320426 its reverse (62402321), we get a palindrome (74722747).

The spelling of 12320426 in words is "twelve million, three hundred twenty thousand, four hundred twenty-six".