12705248 has 24 divisors (see below), whose sum is σ = 25877880. Its totient is φ = 6133120.

The previous prime is 12705229. The next prime is 12705271. The reversal of 12705248 is 84250721.

12705248 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 2×12705248² = 322846653483008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 12705248.

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, 5918 + ... + 7773.

It is an arithmetic number, because the mean of its divisors is an integer number (1078245).

Almost surely, 2^12705248 is an apocalyptic number.

It is an amenable number.

12705248 is an abundant number, since it is smaller than the sum of its proper divisors (13172632).

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

12705248 is a wasteful number, since it uses less digits than its factorization.

12705248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13730 (or 13722 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 12705248 is about 3564.4421723462. The cubic root of 12705248 is about 233.3427878255.

Adding to 12705248 its reverse (84250721), we get a palindrome (96955969).

The spelling of 12705248 in words is "twelve million, seven hundred five thousand, two hundred forty-eight".