12431028 has 24 divisors (see below), whose sum is σ = 29121120. Its totient is φ = 4127200.

The previous prime is 12430963. The next prime is 12431033. The reversal of 12431028 is 82013421.

It is a junction number, because it is equal to n+sod(n) for n = 12430995 and 12431013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1303 + ... + 5153.

It is an arithmetic number, because the mean of its divisors is an integer number (1213380).

Almost surely, 2^12431028 is an apocalyptic number.

It is an amenable number.

12431028 is an abundant number, since it is smaller than the sum of its proper divisors (16690092).

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

12431028 is a wasteful number, since it uses less digits than its factorization.

12431028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127 (or 4125 counting only the distinct ones).

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

The square root of 12431028 is about 3525.7662996858. The cubic root of 12431028 is about 231.6518012878.

Adding to 12431028 its reverse (82013421), we get a palindrome (94444449).

The spelling of 12431028 in words is "twelve million, four hundred thirty-one thousand, twenty-eight".