2681344 has 20 divisors (see below), whose sum is σ = 5358474. Its totient is φ = 1340416.

The previous prime is 2681321. The next prime is 2681347. The reversal of 2681344 is 4431862.

It can be written as a sum of positive squares in only one way, i.e., 1849600 + 831744 = 1360^2 + 912^2 .

It is not an unprimeable number, because it can be changed into a prime (2681347) by changing a digit.

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, 2107 + ... + 3130.

2^2681344 is an apocalyptic number.

It is an amenable number.

2681344 is a deficient number, since it is larger than the sum of its proper divisors (2677130).

2681344 is an frugal number, since it uses more digits than its factorization.

2681344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255 (or 5239 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 2681344 is about 1637.4809922561. The cubic root of 2681344 is about 138.9262068847.

It can be divided in two parts, 2681 and 344, that added together give a square (3025 = 55²).

The spelling of 2681344 in words is "two million, six hundred eighty-one thousand, three hundred forty-four".