12428013 has 16 divisors (see below), whose sum is σ = 17937920. Its totient is φ = 7608384.

The previous prime is 12428011. The next prime is 12428021. The reversal of 12428013 is 31082421.

It is not a de Polignac number, because 12428013 - 2¹ = 12428011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12428011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7983 + ... + 9411.

It is an arithmetic number, because the mean of its divisors is an integer number (1121120).

Almost surely, 2^12428013 is an apocalyptic number.

12428013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12428013 is a deficient number, since it is larger than the sum of its proper divisors (5509907).

12428013 is a wasteful number, since it uses less digits than its factorization.

12428013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12428013 is about 3525.3387071316. The cubic root of 12428013 is about 231.6330716313.

The spelling of 12428013 in words is "twelve million, four hundred twenty-eight thousand, thirteen".