12945448 has 8 divisors (see below), whose sum is σ = 24272730. Its totient is φ = 6472720.

The previous prime is 12945437. The next prime is 12945467. The reversal of 12945448 is 84454921.

It can be written as a sum of positive squares in only one way, i.e., 7828804 + 5116644 = 2798^2 + 2262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 809083 + ... + 809098.

Almost surely, 2^12945448 is an apocalyptic number.

It is an amenable number.

12945448 is a deficient number, since it is larger than the sum of its proper divisors (11327282).

12945448 is a wasteful number, since it uses less digits than its factorization.

12945448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618187 (or 1618183 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 12945448 is about 3597.9783212243. The cubic root of 12945448 is about 234.8041101837.

The spelling of 12945448 in words is "twelve million, nine hundred forty-five thousand, four hundred forty-eight".