12478448 has 20 divisors (see below), whose sum is σ = 24317640. Its totient is φ = 6202944.

The previous prime is 12478409. The next prime is 12478451. The reversal of 12478448 is 84487421.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686 + ... + 5042.

It is an arithmetic number, because the mean of its divisors is an integer number (1215882).

Almost surely, 2^12478448 is an apocalyptic number.

It is an amenable number.

12478448 is a deficient number, since it is larger than the sum of its proper divisors (11839192).

12478448 is a wasteful number, since it uses less digits than its factorization.

12478448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544 (or 4538 counting only the distinct ones).

The product of its digits is 57344, while the sum is 38.

The square root of 12478448 is about 3532.4846779569. The cubic root of 12478448 is about 231.9459842539.

The spelling of 12478448 in words is "twelve million, four hundred seventy-eight thousand, four hundred forty-eight".