12908428 has 48 divisors (see below), whose sum is σ = 26078976. Its totient is φ = 5544000.

The previous prime is 12908417. The next prime is 12908437. The reversal of 12908428 is 82480921.

It is a junction number, because it is equal to n+sod(n) for n = 12908393 and 12908402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51303 + ... + 51553.

It is an arithmetic number, because the mean of its divisors is an integer number (543312).

Almost surely, 2^12908428 is an apocalyptic number.

It is an amenable number.

12908428 is an abundant number, since it is smaller than the sum of its proper divisors (13170548).

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

12908428 is a wasteful number, since it uses less digits than its factorization.

12908428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 12908428 is about 3592.8300822611. The cubic root of 12908428 is about 234.5800739753.

The spelling of 12908428 in words is "twelve million, nine hundred eight thousand, four hundred twenty-eight".