12456448 has 20 divisors (see below), whose sum is σ = 24889590. Its totient is φ = 6227968.

The previous prime is 12456407. The next prime is 12456463. The reversal of 12456448 is 84465421.

It can be written as a sum of positive squares in only one way, i.e., 8952064 + 3504384 = 2992^2 + 1872^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11653 + ... + 12676.

Almost surely, 2^12456448 is an apocalyptic number.

It is an amenable number.

12456448 is a deficient number, since it is larger than the sum of its proper divisors (12433142).

12456448 is an frugal number, since it uses more digits than its factorization.

12456448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24347 (or 24331 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 12456448 is about 3529.3693487647. The cubic root of 12456448 is about 231.8095940710.

Adding to 12456448 its product of digits (30720), we get a cube (12487168 = 232³).

The spelling of 12456448 in words is "twelve million, four hundred fifty-six thousand, four hundred forty-eight".