12406641 has 16 divisors (see below), whose sum is σ = 18251520. Its totient is φ = 7447680.

The previous prime is 12406633. The next prime is 12406649. The reversal of 12406641 is 14660421.

It is an interprime number because it is at equal distance from previous prime (12406633) and next prime (12406649).

It is not a de Polignac number, because 12406641 - 2³ = 12406633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12406649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2281 + ... + 5478.

It is an arithmetic number, because the mean of its divisors is an integer number (1140720).

Almost surely, 2^12406641 is an apocalyptic number.

It is an amenable number.

12406641 is a deficient number, since it is larger than the sum of its proper divisors (5844879).

12406641 is a wasteful number, since it uses less digits than its factorization.

12406641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7816.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 12406641 is about 3522.3062047471. The cubic root of 12406641 is about 231.5002184704.

The spelling of 12406641 in words is "twelve million, four hundred six thousand, six hundred forty-one".