12401244 has 18 divisors (see below), whose sum is σ = 31347680. Its totient is φ = 4133736.

The previous prime is 12401189. The next prime is 12401251. The reversal of 12401244 is 44210421.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 172204 + ... + 172275.

Almost surely, 2^12401244 is an apocalyptic number.

It is an amenable number.

12401244 is an abundant number, since it is smaller than the sum of its proper divisors (18946436).

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

12401244 is a wasteful number, since it uses less digits than its factorization.

12401244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344489 (or 344484 counting only the distinct ones).

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

The square root of 12401244 is about 3521.5400040323. The cubic root of 12401244 is about 231.4666453787.

Adding to 12401244 its reverse (44210421), we get a palindrome (56611665).

The spelling of 12401244 in words is "twelve million, four hundred one thousand, two hundred forty-four".