2644043 has 2 divisors, whose sum is σ = 2644044. Its totient is φ = 2644042.

The previous prime is 2644039. The next prime is 2644063. The reversal of 2644043 is 3404462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2644043 - 2² = 2644039 is a prime.

It is not a weakly prime, because it can be changed into another prime (2644003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322021 + 1322022.

It is an arithmetic number, because the mean of its divisors is an integer number (1322022).

2^2644043 is an apocalyptic number.

2644043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644043 is an equidigital number, since it uses as much as digits as its factorization.

2644043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2644043 is about 1626.0513522026. The cubic root of 2644043 is about 138.2789812442.

The spelling of 2644043 in words is "two million, six hundred forty-four thousand, forty-three".