12799428 has 12 divisors (see below), whose sum is σ = 29865360. Its totient is φ = 4266472.

The previous prime is 12799417. The next prime is 12799459. The reversal of 12799428 is 82499721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12799428.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 533298 + ... + 533321.

It is an arithmetic number, because the mean of its divisors is an integer number (2488780).

Almost surely, 2^12799428 is an apocalyptic number.

It is an amenable number.

12799428 is an abundant number, since it is smaller than the sum of its proper divisors (17065932).

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

12799428 is a wasteful number, since it uses less digits than its factorization.

12799428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066626 (or 1066624 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 12799428 is about 3577.6288236764. The cubic root of 12799428 is about 233.9179345507.

The spelling of 12799428 in words is "twelve million, seven hundred ninety-nine thousand, four hundred twenty-eight".