12981828 has 24 divisors (see below), whose sum is σ = 30427488. Its totient is φ = 4307776.

The previous prime is 12981827. The next prime is 12981851. The reversal of 12981828 is 82818921.

It is not an unprimeable number, because it can be changed into a prime (12981827) 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, 475 + ... + 5117.

It is an arithmetic number, because the mean of its divisors is an integer number (1267812).

Almost surely, 2^12981828 is an apocalyptic number.

It is an amenable number.

12981828 is an abundant number, since it is smaller than the sum of its proper divisors (17445660).

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

12981828 is a wasteful number, since it uses less digits than its factorization.

12981828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883 (or 4881 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 12981828 is about 3603.0303912124. The cubic root of 12981828 is about 235.0238575447.

The spelling of 12981828 in words is "twelve million, nine hundred eighty-one thousand, eight hundred twenty-eight".