12828449 has 8 divisors (see below), whose sum is σ = 13241760. Its totient is φ = 12420000.

The previous prime is 12828427. The next prime is 12828461. The reversal of 12828449 is 94482821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12828449 - 2¹² = 12824353 is a prime.

It is a super-3 number, since 3×12828449³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12828499) 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, 4574 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (1655220).

Almost surely, 2^12828449 is an apocalyptic number.

It is an amenable number.

12828449 is a deficient number, since it is larger than the sum of its proper divisors (413311).

12828449 is a wasteful number, since it uses less digits than its factorization.

12828449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431.

The product of its digits is 36864, while the sum is 38.

The square root of 12828449 is about 3581.6824258999. The cubic root of 12828449 is about 234.0945936986.

The spelling of 12828449 in words is "twelve million, eight hundred twenty-eight thousand, four hundred forty-nine".