12819432 has 32 divisors (see below), whose sum is σ = 32136480. Its totient is φ = 4261440.

The previous prime is 12819419. The next prime is 12819439. The reversal of 12819432 is 23491821.

It is a self number, because there is not a number n which added to its sum of digits gives 12819432.

It is not an unprimeable number, because it can be changed into a prime (12819439) 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, 16198 + ... + 16970.

It is an arithmetic number, because the mean of its divisors is an integer number (1004265).

Almost surely, 2^12819432 is an apocalyptic number.

12819432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12819432 is an abundant number, since it is smaller than the sum of its proper divisors (19317048).

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

12819432 is a wasteful number, since it uses less digits than its factorization.

12819432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473 (or 1469 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 12819432 is about 3580.4234386452. The cubic root of 12819432 is about 234.0397331901.

The spelling of 12819432 in words is "twelve million, eight hundred nineteen thousand, four hundred thirty-two".