12326405 has 16 divisors (see below), whose sum is σ = 18205824. Its totient is φ = 7801920.

The previous prime is 12326393. The next prime is 12326417. The reversal of 12326405 is 50462321.

It is an interprime number because it is at equal distance from previous prime (12326393) and next prime (12326417).

It is not a de Polignac number, because 12326405 - 2⁶ = 12326341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13091 + ... + 14000.

It is an arithmetic number, because the mean of its divisors is an integer number (1137864).

Almost surely, 2^12326405 is an apocalyptic number.

It is an amenable number.

12326405 is a deficient number, since it is larger than the sum of its proper divisors (5879419).

12326405 is a wasteful number, since it uses less digits than its factorization.

12326405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27116.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 12326405 is about 3510.8980332673. The cubic root of 12326405 is about 231.0000874546. Note that the first 4 decimals are identical.

Adding to 12326405 its reverse (50462321), we get a palindrome (62788726).

The spelling of 12326405 in words is "twelve million, three hundred twenty-six thousand, four hundred five".