12421446 has 8 divisors (see below), whose sum is σ = 24842904. Its totient is φ = 4140480.

The previous prime is 12421439. The next prime is 12421481. The reversal of 12421446 is 64412421.

It is a happy number.

12421446 is digitally balanced in base 2, 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.

12421446 is an admirable number.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035115 + ... + 1035126.

It is an arithmetic number, because the mean of its divisors is an integer number (3105363).

Almost surely, 2^12421446 is an apocalyptic number.

12421446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12421446 is a wasteful number, since it uses less digits than its factorization.

12421446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070246.

The product of its digits is 1536, while the sum is 24.

The square root of 12421446 is about 3524.4071841942. The cubic root of 12421446 is about 231.5922659025.

Adding to 12421446 its reverse (64412421), we get a palindrome (76833867).

The spelling of 12421446 in words is "twelve million, four hundred twenty-one thousand, four hundred forty-six".