2646344 has 8 divisors (see below), whose sum is σ = 4961910. Its totient is φ = 1323168.

The previous prime is 2646269. The next prime is 2646353. The reversal of 2646344 is 4436462.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2365444 + 280900 = 1538^2 + 530^2 .

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, 165389 + ... + 165404.

2^2646344 is an apocalyptic number.

It is an amenable number.

2646344 is a deficient number, since it is larger than the sum of its proper divisors (2315566).

2646344 is a wasteful number, since it uses less digits than its factorization.

2646344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330799 (or 330795 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 2646344 is about 1626.7587405636. The cubic root of 2646344 is about 138.3190824177.

The spelling of 2646344 in words is "two million, six hundred forty-six thousand, three hundred forty-four".