13404448 has 12 divisors (see below), whose sum is σ = 26390070. Its totient is φ = 6702208.

The previous prime is 13404427. The next prime is 13404451. The reversal of 13404448 is 84440431.

It can be written as a sum of positive squares in only one way, i.e., 13162384 + 242064 = 3628^2 + 492^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209413 + ... + 209476.

Almost surely, 2^13404448 is an apocalyptic number.

It is an amenable number.

13404448 is a deficient number, since it is larger than the sum of its proper divisors (12985622).

13404448 is an equidigital number, since it uses as much as digits as its factorization.

13404448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418899 (or 418891 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 13404448 is about 3661.2085436369. The cubic root of 13404448 is about 237.5470518043.

Adding to 13404448 its reverse (84440431), we get a palindrome (97844879).

The spelling of 13404448 in words is "thirteen million, four hundred four thousand, four hundred forty-eight".