12283428 has 24 divisors (see below), whose sum is σ = 28927360. Its totient is φ = 4056480.

The previous prime is 12283421. The next prime is 12283429. The reversal of 12283428 is 82438221.

It is a junction number, because it is equal to n+sod(n) for n = 12283395 and 12283404.

It is not an unprimeable number, because it can be changed into a prime (12283421) 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 7 ways as a sum of consecutive naturals, for example, 3388 + ... + 6003.

Almost surely, 2^12283428 is an apocalyptic number.

It is an amenable number.

12283428 is an abundant number, since it is smaller than the sum of its proper divisors (16643932).

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

12283428 is a wasteful number, since it uses less digits than its factorization.

12283428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507 (or 9505 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 12283428 is about 3504.7721751920. The cubic root of 12283428 is about 230.7313080590.

It can be divided in two parts, 1228 and 3428, that added together give a triangular number (4656 = T₉₆).

The spelling of 12283428 in words is "twelve million, two hundred eighty-three thousand, four hundred twenty-eight".