2656244 has 6 divisors (see below), whose sum is σ = 4648434. Its totient is φ = 1328120.

The previous prime is 2656243. The next prime is 2656261. The reversal of 2656244 is 4426562.

2656244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1532644 + 1123600 = 1238^2 + 1060^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332027 + ... + 332034.

It is an arithmetic number, because the mean of its divisors is an integer number (774739).

2^2656244 is an apocalyptic number.

It is an amenable number.

2656244 is a deficient number, since it is larger than the sum of its proper divisors (1992190).

2656244 is a wasteful number, since it uses less digits than its factorization.

2656244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664065 (or 664063 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 2656244 is about 1629.7987605836. The cubic root of 2656244 is about 138.4913521429.

The spelling of 2656244 in words is "two million, six hundred fifty-six thousand, two hundred forty-four".