12428418 has 32 divisors (see below), whose sum is σ = 26199936. Its totient is φ = 3922688.

The previous prime is 12428401. The next prime is 12428431. The reversal of 12428418 is 81482421.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 15196 + ... + 15992.

It is an arithmetic number, because the mean of its divisors is an integer number (818748).

Almost surely, 2^12428418 is an apocalyptic number.

12428418 is an abundant number, since it is smaller than the sum of its proper divisors (13771518).

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

12428418 is a wasteful number, since it uses less digits than its factorization.

12428418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938.

The product of its digits is 4096, while the sum is 30.

The square root of 12428418 is about 3525.3961479527. The cubic root of 12428418 is about 231.6355877314.

The spelling of 12428418 in words is "twelve million, four hundred twenty-eight thousand, four hundred eighteen".