12432028 has 12 divisors (see below), whose sum is σ = 24864112. Its totient is φ = 5328000.

The previous prime is 12432011. The next prime is 12432053. The reversal of 12432028 is 82023421.

12432028 is an admirable number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221973 + ... + 222028.

Almost surely, 2^12432028 is an apocalyptic number.

It is an amenable number.

12432028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12432028 is a wasteful number, since it uses less digits than its factorization.

12432028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444012 (or 444010 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 12432028 is about 3525.9081099768. The cubic root of 12432028 is about 231.6580127770.

Adding to 12432028 its reverse (82023421), we get a palindrome (94455449).

The spelling of 12432028 in words is "twelve million, four hundred thirty-two thousand, twenty-eight".