12421064 has 16 divisors (see below), whose sum is σ = 23672220. Its totient is φ = 6108480.

The previous prime is 12421061. The next prime is 12421099. The reversal of 12421064 is 46012421.

It can be written as a sum of positive squares in 2 ways, for example, as 11276164 + 1144900 = 3358^2 + 1070^2 .

It is not an unprimeable number, because it can be changed into a prime (12421061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12239 + ... + 13214.

Almost surely, 2^12421064 is an apocalyptic number.

It is an amenable number.

12421064 is a deficient number, since it is larger than the sum of its proper divisors (11251156).

12421064 is a wasteful number, since it uses less digits than its factorization.

12421064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25520 (or 25516 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 12421064 is about 3524.3529902664. The cubic root of 12421064 is about 231.5898918055.

Adding to 12421064 its reverse (46012421), we get a palindrome (58433485).

The spelling of 12421064 in words is "twelve million, four hundred twenty-one thousand, sixty-four".