12426385 has 4 divisors (see below), whose sum is σ = 14911668. Its totient is φ = 9941104.

The previous prime is 12426383. The next prime is 12426389. The reversal of 12426385 is 58362421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1615441 + 10810944 = 1271^2 + 3288^2 .

It is a cyclic number.

It is not a de Polignac number, because 12426385 - 2¹ = 12426383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12426383) 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 in 3 ways as a sum of consecutive naturals, for example, 1242634 + ... + 1242643.

It is an arithmetic number, because the mean of its divisors is an integer number (3727917).

Almost surely, 2^12426385 is an apocalyptic number.

It is an amenable number.

12426385 is a deficient number, since it is larger than the sum of its proper divisors (2485283).

12426385 is an equidigital number, since it uses as much as digits as its factorization.

12426385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485282.

The product of its digits is 11520, while the sum is 31.

The square root of 12426385 is about 3525.1077997701. The cubic root of 12426385 is about 231.6229569785.

The spelling of 12426385 in words is "twelve million, four hundred twenty-six thousand, three hundred eighty-five".