12312406 has 8 divisors (see below), whose sum is σ = 19271664. Its totient is φ = 5888520.

The previous prime is 12312401. The next prime is 12312407. The reversal of 12312406 is 60421321.

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

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 (12312401) 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 3 ways as a sum of consecutive naturals, for example, 133785 + ... + 133876.

It is an arithmetic number, because the mean of its divisors is an integer number (2408958).

Almost surely, 2^12312406 is an apocalyptic number.

12312406 is a deficient number, since it is larger than the sum of its proper divisors (6959258).

12312406 is a wasteful number, since it uses less digits than its factorization.

12312406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267686.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12312406 is about 3508.9038174336. The cubic root of 12312406 is about 230.9126060090.

Adding to 12312406 its reverse (60421321), we get a palindrome (72733727).

The spelling of 12312406 in words is "twelve million, three hundred twelve thousand, four hundred six".