12428016 has 20 divisors (see below), whose sum is σ = 32105832. Its totient is φ = 4142656.

The previous prime is 12428011. The next prime is 12428021. The reversal of 12428016 is 61082421.

It is an interprime number because it is at equal distance from previous prime (12428011) and next prime (12428021).

It is a Harshad number since it is a multiple of its sum of digits (24).

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 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, 129411 + ... + 129506.

Almost surely, 2^12428016 is an apocalyptic number.

12428016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12428016 is an abundant number, since it is smaller than the sum of its proper divisors (19677816).

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

12428016 is a wasteful number, since it uses less digits than its factorization.

12428016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258928 (or 258922 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 12428016 is about 3525.3391326226. The cubic root of 12428016 is about 231.6330902693.

The spelling of 12428016 in words is "twelve million, four hundred twenty-eight thousand, sixteen".