2644016 has 20 divisors (see below), whose sum is σ = 5150712. Its totient is φ = 1314816.

The previous prime is 2644007. The next prime is 2644039. The reversal of 2644016 is 6104462.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2643982 and 2644000.

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 in 3 ways as a sum of consecutive naturals, for example, 3791 + ... + 4433.

2^2644016 is an apocalyptic number.

It is an amenable number.

2644016 is a deficient number, since it is larger than the sum of its proper divisors (2506696).

2644016 is a wasteful number, since it uses less digits than its factorization.

2644016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2644016 is about 1626.0430498606. The cubic root of 2644016 is about 138.2785105578.

Adding to 2644016 its reverse (6104462), we get a palindrome (8748478).

The spelling of 2644016 in words is "two million, six hundred forty-four thousand, sixteen".