12722276 has 24 divisors (see below), whose sum is σ = 26267136. Its totient is φ = 5276160.

The previous prime is 12722261. The next prime is 12722287. The reversal of 12722276 is 67222721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6461 + ... + 8196.

It is an arithmetic number, because the mean of its divisors is an integer number (1094464).

Almost surely, 2^12722276 is an apocalyptic number.

It is an amenable number.

12722276 is an abundant number, since it is smaller than the sum of its proper divisors (13544860).

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

12722276 is a wasteful number, since it uses less digits than its factorization.

12722276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14699 (or 14697 counting only the distinct ones).

The product of its digits is 4704, while the sum is 29.

The square root of 12722276 is about 3566.8299651091. The cubic root of 12722276 is about 233.4469859027.

Adding to 12722276 its reverse (67222721), we get a palindrome (79944997).

The spelling of 12722276 in words is "twelve million, seven hundred twenty-two thousand, two hundred seventy-six".