12722344 has 8 divisors (see below), whose sum is σ = 23854410. Its totient is φ = 6361168.

The previous prime is 12722321. The next prime is 12722351. The reversal of 12722344 is 44322721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11819844 + 902500 = 3438^2 + 950^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 795139 + ... + 795154.

Almost surely, 2^12722344 is an apocalyptic number.

It is an amenable number.

12722344 is a deficient number, since it is larger than the sum of its proper divisors (11132066).

12722344 is a wasteful number, since it uses less digits than its factorization.

12722344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590299 (or 1590295 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 12722344 is about 3566.8394973702. The cubic root of 12722344 is about 233.4474018232.

The spelling of 12722344 in words is "twelve million, seven hundred twenty-two thousand, three hundred forty-four".