2642843 has 16 divisors (see below), whose sum is σ = 3287040. Its totient is φ = 2073600.

The previous prime is 2642839. The next prime is 2642863. The reversal of 2642843 is 3482462.

2642843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2642843 - 2² = 2642839 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁴ + 4⁵ + 2²¹ + 8³ + 4⁷ + 3⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642863) 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 in 15 ways as a sum of consecutive naturals, for example, 3803 + ... + 4443.

It is an arithmetic number, because the mean of its divisors is an integer number (205440).

2^2642843 is an apocalyptic number.

2642843 is a deficient number, since it is larger than the sum of its proper divisors (644197).

2642843 is a wasteful number, since it uses less digits than its factorization.

2642843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698.

The product of its digits is 9216, while the sum is 29.

The square root of 2642843 is about 1625.6823182898. The cubic root of 2642843 is about 138.2580587546.

The spelling of 2642843 in words is "two million, six hundred forty-two thousand, eight hundred forty-three".