12428516 has 12 divisors (see below), whose sum is σ = 21838320. Its totient is φ = 6189000.

The previous prime is 12428509. The next prime is 12428519. The reversal of 12428516 is 61582421.

It is not an unprimeable number, because it can be changed into a prime (12428519) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5186 + ... + 7193.

It is an arithmetic number, because the mean of its divisors is an integer number (1819860).

Almost surely, 2^12428516 is an apocalyptic number.

It is an amenable number.

12428516 is a deficient number, since it is larger than the sum of its proper divisors (9409804).

12428516 is a wasteful number, since it uses less digits than its factorization.

12428516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12634 (or 12632 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 12428516 is about 3525.4100470725. The cubic root of 12428516 is about 231.6361965573.

The spelling of 12428516 in words is "twelve million, four hundred twenty-eight thousand, five hundred sixteen".