2443845 has 16 divisors (see below), whose sum is σ = 3935232. Its totient is φ = 1295040.

The previous prime is 2443841. The next prime is 2443849. The reversal of 2443845 is 5483442.

It is an interprime number because it is at equal distance from previous prime (2443841) and next prime (2443849).

It is not a de Polignac number, because 2443845 - 2² = 2443841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2439 + ... + 3291.

It is an arithmetic number, because the mean of its divisors is an integer number (245952).

2^2443845 is an apocalyptic number.

It is an amenable number.

2443845 is a deficient number, since it is larger than the sum of its proper divisors (1491387).

2443845 is a wasteful number, since it uses less digits than its factorization.

2443845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052.

The product of its digits is 15360, while the sum is 30.

The square root of 2443845 is about 1563.2802052095. The cubic root of 2443845 is about 134.6969884286.

The spelling of 2443845 in words is "two million, four hundred forty-three thousand, eight hundred forty-five".