12280648 has 16 divisors (see below), whose sum is σ = 23588460. Its totient is φ = 5990400.

The previous prime is 12280621. The next prime is 12280661. The reversal of 12280648 is 84608221.

12280648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11437924 + 842724 = 3382^2 + 918^2 .

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, 18393 + ... + 19048.

Almost surely, 2^12280648 is an apocalyptic number.

It is an amenable number.

12280648 is a deficient number, since it is larger than the sum of its proper divisors (11307812).

12280648 is a wasteful number, since it uses less digits than its factorization.

12280648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37488 (or 37484 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 12280648 is about 3504.3755506509. The cubic root of 12280648 is about 230.7139002846.

Adding to 12280648 its reverse (84608221), we get a palindrome (96888869).

The spelling of 12280648 in words is "twelve million, two hundred eighty thousand, six hundred forty-eight".