12440448 has 48 divisors (see below), whose sum is σ = 35802000. Its totient is φ = 4146432.

The previous prime is 12440431. The next prime is 12440453. The reversal of 12440448 is 84404421.

It is a happy number.

12440448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4248 + ... + 6551.

It is an arithmetic number, because the mean of its divisors is an integer number (745875).

Almost surely, 2^12440448 is an apocalyptic number.

12440448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12440448 is an abundant number, since it is smaller than the sum of its proper divisors (23361552).

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

12440448 is a wasteful number, since it uses less digits than its factorization.

12440448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10819 (or 10804 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 12440448 is about 3527.1019265113. The cubic root of 12440448 is about 231.7103003114.

Adding to 12440448 its reverse (84404421), we get a palindrome (96844869).

The spelling of 12440448 in words is "twelve million, four hundred forty thousand, four hundred forty-eight".