12422399 has 8 divisors (see below), whose sum is σ = 13867392. Its totient is φ = 11030040.

The previous prime is 12422363. The next prime is 12422401. The reversal of 12422399 is 99322421.

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

It is a cyclic number.

It is not a de Polignac number, because 12422399 - 2¹² = 12418303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422309) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12659 + ... + 13604.

It is an arithmetic number, because the mean of its divisors is an integer number (1733424).

Almost surely, 2^12422399 is an apocalyptic number.

12422399 is a deficient number, since it is larger than the sum of its proper divisors (1444993).

12422399 is a wasteful number, since it uses less digits than its factorization.

12422399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26317.

The product of its digits is 7776, while the sum is 32.

The square root of 12422399 is about 3524.5423816433. The cubic root of 12422399 is about 231.5981885029.

It can be divided in two parts, 12422 and 399, that added together give a palindrome (12821).

The spelling of 12422399 in words is "twelve million, four hundred twenty-two thousand, three hundred ninety-nine".