12705448 has 32 divisors (see below), whose sum is σ = 27518400. Its totient is φ = 5386752.

The previous prime is 12705437. The next prime is 12705481. The reversal of 12705448 is 84450721.

12705448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12705448² = 322856817761408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4263 + ... + 6601.

It is an arithmetic number, because the mean of its divisors is an integer number (859950).

Almost surely, 2^12705448 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 12705448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13759200).

12705448 is an abundant number, since it is smaller than the sum of its proper divisors (14812952).

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

12705448 is a wasteful number, since it uses less digits than its factorization.

12705448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449 (or 2445 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 12705448 is about 3564.4702271165. The cubic root of 12705448 is about 233.3440122097.

The spelling of 12705448 in words is "twelve million, seven hundred five thousand, four hundred forty-eight".