12821262 has 8 divisors (see below), whose sum is σ = 25642536. Its totient is φ = 4273752.

The previous prime is 12821261. The next prime is 12821273. The reversal of 12821262 is 26212821.

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

12821262 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12821261) by changing a digit.

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, 1068433 + ... + 1068444.

It is an arithmetic number, because the mean of its divisors is an integer number (3205317).

Almost surely, 2^12821262 is an apocalyptic number.

12821262 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12821262 is a wasteful number, since it uses less digits than its factorization.

12821262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136882.

The product of its digits is 768, while the sum is 24.

The square root of 12821262 is about 3580.6789858908. The cubic root of 12821262 is about 234.0508692096.

The spelling of 12821262 in words is "twelve million, eight hundred twenty-one thousand, two hundred sixty-two".