12800044 has 12 divisors (see below), whose sum is σ = 22435168. Its totient is φ = 6390000.

The previous prime is 12800041. The next prime is 12800063. The reversal of 12800044 is 44000821.

It is a super-2 number, since 2×12800044² = 327682252803872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12799994 and 12800030.

It is not an unprimeable number, because it can be changed into a prime (12800041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874 + ... + 5134.

Almost surely, 2^12800044 is an apocalyptic number.

It is an amenable number.

12800044 is a deficient number, since it is larger than the sum of its proper divisors (9635124).

12800044 is a wasteful number, since it uses less digits than its factorization.

12800044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016 (or 5014 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 12800044 is about 3577.7149131813. The cubic root of 12800044 is about 233.9216870917.

Adding to 12800044 its reverse (44000821), we get a palindrome (56800865).

The spelling of 12800044 in words is "twelve million, eight hundred thousand, forty-four".