12428232 has 64 divisors (see below), whose sum is σ = 32313600. Its totient is φ = 3981120.

The previous prime is 12428219. The next prime is 12428233. The reversal of 12428232 is 23282421.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12428233) 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 15 ways as a sum of consecutive naturals, for example, 94807 + ... + 94937.

It is an arithmetic number, because the mean of its divisors is an integer number (504900).

Almost surely, 2^12428232 is an apocalyptic number.

12428232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12428232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16156800).

12428232 is an abundant number, since it is smaller than the sum of its proper divisors (19885368).

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

12428232 is a wasteful number, since it uses less digits than its factorization.

12428232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 262 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 12428232 is about 3525.3697678400. The cubic root of 12428232 is about 231.6344321959.

The spelling of 12428232 in words is "twelve million, four hundred twenty-eight thousand, two hundred thirty-two".