12305406 has 16 divisors (see below), whose sum is σ = 24701184. Its totient is φ = 4086744.

The previous prime is 12305401. The next prime is 12305413. The reversal of 12305406 is 60450321.

It is a happy number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305401) 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, 1926 + ... + 5321.

It is an arithmetic number, because the mean of its divisors is an integer number (1543824).

Almost surely, 2^12305406 is an apocalyptic number.

12305406 is an abundant number, since it is smaller than the sum of its proper divisors (12395778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12305406 is a wasteful number, since it uses less digits than its factorization.

12305406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7535.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 12305406 is about 3507.9062131135. The cubic root of 12305406 is about 230.8688372914.

Adding to 12305406 its reverse (60450321), we get a palindrome (72755727).

The spelling of 12305406 in words is "twelve million, three hundred five thousand, four hundred six".