12831456 has 96 divisors (see below), whose sum is σ = 38102400. Its totient is φ = 3745280.

The previous prime is 12831449. The next prime is 12831457. The reversal of 12831456 is 65413821.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12831457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30415 + ... + 30833.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

Almost surely, 2^12831456 is an apocalyptic number.

12831456 is a gapful number since it is divisible by the number (16) 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 12831456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19051200).

12831456 is an abundant number, since it is smaller than the sum of its proper divisors (25270944).

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

12831456 is a wasteful number, since it uses less digits than its factorization.

12831456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 464 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 12831456 is about 3582.1021760972. The cubic root of 12831456 is about 234.1128829309.

The spelling of 12831456 in words is "twelve million, eight hundred thirty-one thousand, four hundred fifty-six".