12381044 has 24 divisors (see below), whose sum is σ = 23429448. Its totient is φ = 5690880.

The previous prime is 12381041. The next prime is 12381053. The reversal of 12381044 is 44018321.

It can be written as a sum of positive squares in 4 ways, for example, as 1024144 + 11356900 = 1012^2 + 3370^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381041) 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, 23504 + ... + 24024.

It is an arithmetic number, because the mean of its divisors is an integer number (976227).

Almost surely, 2^12381044 is an apocalyptic number.

It is an amenable number.

12381044 is a deficient number, since it is larger than the sum of its proper divisors (11048404).

12381044 is a wasteful number, since it uses less digits than its factorization.

12381044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 12381044 is about 3518.6707717546. The cubic root of 12381044 is about 231.3409008110.

Adding to 12381044 its reverse (44018321), we get a palindrome (56399365).

The spelling of 12381044 in words is "twelve million, three hundred eighty-one thousand, forty-four".