12466421 has 8 divisors (see below), whose sum is σ = 13889664. Its totient is φ = 11091520.

The previous prime is 12466411. The next prime is 12466427.

12466421 is nontrivially palindromic in base 10.

12466421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-12466421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12466427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11540 + ... + 12573.

It is an arithmetic number, because the mean of its divisors is an integer number (1736208).

Almost surely, 2^12466421 is an apocalyptic number.

12466421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12466421 is a deficient number, since it is larger than the sum of its proper divisors (1423243).

12466421 is a wasteful number, since it uses less digits than its factorization.

12466421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24171.

The product of its digits is 2304, while the sum is 26.

The square root of 12466421 is about 3530.7819247300. The cubic root of 12466421 is about 231.8714421029.

It can be divided in two parts, 1246 and 6421, that added together give a palindrome (7667).

The spelling of 12466421 in words is "twelve million, four hundred sixty-six thousand, four hundred twenty-one".