12478944 has 48 divisors (see below), whose sum is σ = 33530112. Its totient is φ = 4061568.

The previous prime is 12478943. The next prime is 12478979. The reversal of 12478944 is 44987421.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2617 + ... + 5639.

It is an arithmetic number, because the mean of its divisors is an integer number (698544).

Almost surely, 2^12478944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12478944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16765056).

12478944 is an abundant number, since it is smaller than the sum of its proper divisors (21051168).

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

12478944 is a wasteful number, since it uses less digits than its factorization.

12478944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079 (or 3071 counting only the distinct ones).

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

The square root of 12478944 is about 3532.5548828008. The cubic root of 12478944 is about 231.9490573840.

The spelling of 12478944 in words is "twelve million, four hundred seventy-eight thousand, nine hundred forty-four".