12408128 has 14 divisors (see below), whose sum is σ = 24622506. Its totient is φ = 6204032.

The previous prime is 12408127. The next prime is 12408131. The reversal of 12408128 is 82180421.

It can be written as a sum of positive squares in only one way, i.e., 12334144 + 73984 = 3512^2 + 272^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12408097 and 12408106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12408127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96875 + ... + 97002.

Almost surely, 2^12408128 is an apocalyptic number.

It is an amenable number.

12408128 is a deficient number, since it is larger than the sum of its proper divisors (12214378).

12408128 is an equidigital number, since it uses as much as digits as its factorization.

12408128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193889 (or 193879 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 12408128 is about 3522.5172817177. The cubic root of 12408128 is about 231.5094669332.

Adding to 12408128 its reverse (82180421), we get a palindrome (94588549).

The spelling of 12408128 in words is "twelve million, four hundred eight thousand, one hundred twenty-eight".