12648446 has 4 divisors (see below), whose sum is σ = 18972672. Its totient is φ = 6324222.

The previous prime is 12648439. The next prime is 12648451. The reversal of 12648446 is 64484621.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3162110 + ... + 3162113.

It is an arithmetic number, because the mean of its divisors is an integer number (4743168).

Almost surely, 2^12648446 is an apocalyptic number.

12648446 is a deficient number, since it is larger than the sum of its proper divisors (6324226).

12648446 is an equidigital number, since it uses as much as digits as its factorization.

12648446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324225.

The product of its digits is 36864, while the sum is 35.

The square root of 12648446 is about 3556.4653801211. The cubic root of 12648446 is about 232.9945291500.

The spelling of 12648446 in words is "twelve million, six hundred forty-eight thousand, four hundred forty-six".