2646844 has 12 divisors (see below), whose sum is σ = 4643800. Its totient is φ = 1320048.

The previous prime is 2646841. The next prime is 2646881. The reversal of 2646844 is 4486462.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁹ + 6³ + 4 + 6⁵ + 8⁷ + 4⁵ + 4⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1942 + ... + 3010.

2^2646844 is an apocalyptic number.

It is an amenable number.

2646844 is a deficient number, since it is larger than the sum of its proper divisors (1996956).

2646844 is a wasteful number, since it uses less digits than its factorization.

2646844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692 (or 1690 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 2646844 is about 1626.9124131311. The cubic root of 2646844 is about 138.3277932008.

The spelling of 2646844 in words is "two million, six hundred forty-six thousand, eight hundred forty-four".