12722648 has 48 divisors (see below), whose sum is σ = 25920960. Its totient is φ = 5846400.

The previous prime is 12722641. The next prime is 12722653. The reversal of 12722648 is 84622721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12722641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208538 + ... + 208598.

It is an arithmetic number, because the mean of its divisors is an integer number (540020).

Almost surely, 2^12722648 is an apocalyptic number.

It is an amenable number.

12722648 is an abundant number, since it is smaller than the sum of its proper divisors (13198312).

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

12722648 is a wasteful number, since it uses less digits than its factorization.

12722648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 123 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 12722648 is about 3566.8821118731. The cubic root of 12722648 is about 233.4492612144.

The spelling of 12722648 in words is "twelve million, seven hundred twenty-two thousand, six hundred forty-eight".