12830440 has 32 divisors (see below), whose sum is σ = 32993280. Its totient is φ = 4398912.

The previous prime is 12830437. The next prime is 12830449. The reversal of 12830440 is 4403821.

12830440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12830449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22632 + ... + 23191.

It is an arithmetic number, because the mean of its divisors is an integer number (1031040).

Almost surely, 2^12830440 is an apocalyptic number.

12830440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12830440 is an abundant number, since it is smaller than the sum of its proper divisors (20162840).

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

12830440 is a wasteful number, since it uses less digits than its factorization.

12830440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45841 (or 45837 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 12830440 is about 3581.9603571229. The cubic root of 12830440 is about 234.1067037161.

The spelling of 12830440 in words is "twelve million, eight hundred thirty thousand, four hundred forty".