12421044 has 36 divisors (see below), whose sum is σ = 31730244. Its totient is φ = 4096512.

The previous prime is 12421039. The next prime is 12421051. The reversal of 12421044 is 44012421.

It can be written as a sum of positive squares in 2 ways, for example, as 3348900 + 9072144 = 1830^2 + 3012^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1714 + ... + 5270.

Almost surely, 2^12421044 is an apocalyptic number.

It is an amenable number.

12421044 is an abundant number, since it is smaller than the sum of its proper divisors (19309200).

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

12421044 is a wasteful number, since it uses less digits than its factorization.

12421044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664 (or 3659 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 12421044 is about 3524.3501528651. The cubic root of 12421044 is about 231.5897675059.

Adding to 12421044 its reverse (44012421), we get a palindrome (56433465).

The spelling of 12421044 in words is "twelve million, four hundred twenty-one thousand, forty-four".