12722336 has 48 divisors (see below), whose sum is σ = 27941760. Its totient is φ = 5652480.

The previous prime is 12722321. The next prime is 12722351. The reversal of 12722336 is 63322721.

It is an interprime number because it is at equal distance from previous prime (12722321) and next prime (12722351).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16160 + ... + 16928.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^12722336 is an apocalyptic number.

12722336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12722336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13970880).

12722336 is an abundant number, since it is smaller than the sum of its proper divisors (15219424).

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

12722336 is a wasteful number, since it uses less digits than its factorization.

12722336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 829 counting only the distinct ones).

The product of its digits is 3024, while the sum is 26.

The square root of 12722336 is about 3566.8383759290. The cubic root of 12722336 is about 233.4473528914.

The spelling of 12722336 in words is "twelve million, seven hundred twenty-two thousand, three hundred thirty-six".