12378648 has 16 divisors (see below), whose sum is σ = 30946680. Its totient is φ = 4126208.

The previous prime is 12378647. The next prime is 12378649. The reversal of 12378648 is 84687321.

It is an interprime number because it is at equal distance from previous prime (12378647) and next prime (12378649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12378647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257865 + ... + 257912.

Almost surely, 2^12378648 is an apocalyptic number.

It is an amenable number.

12378648 is an abundant number, since it is smaller than the sum of its proper divisors (18568032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12378648 is a wasteful number, since it uses less digits than its factorization.

12378648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515786 (or 515782 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 12378648 is about 3518.3302858032. The cubic root of 12378648 is about 231.3259766910.

The spelling of 12378648 in words is "twelve million, three hundred seventy-eight thousand, six hundred forty-eight".