12990044 has 6 divisors (see below), whose sum is σ = 22732584. Its totient is φ = 6495020.

The previous prime is 12990041. The next prime is 12990059. The reversal of 12990044 is 44009921.

12990044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12989989 and 12990016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1623752 + ... + 1623759.

It is an arithmetic number, because the mean of its divisors is an integer number (3788764).

Almost surely, 2^12990044 is an apocalyptic number.

It is an amenable number.

12990044 is a deficient number, since it is larger than the sum of its proper divisors (9742540).

12990044 is a wasteful number, since it uses less digits than its factorization.

12990044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247515 (or 3247513 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12990044 is about 3604.1703622332. The cubic root of 12990044 is about 235.0734280879.

Adding to 12990044 its reverse (44009921), we get a palindrome (56999965).

The spelling of 12990044 in words is "twelve million, nine hundred ninety thousand, forty-four".