42844305 has 16 divisors (see below), whose sum is σ = 78344064. Its totient is φ = 19585920.

The previous prime is 42844283. The next prime is 42844313. The reversal of 42844305 is 50344824.

It is not a de Polignac number, because 42844305 - 2⁷ = 42844177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203916 + ... + 204125.

It is an arithmetic number, because the mean of its divisors is an integer number (4896504).

Almost surely, 2^42844305 is an apocalyptic number.

It is an amenable number.

42844305 is a deficient number, since it is larger than the sum of its proper divisors (35499759).

42844305 is a wasteful number, since it uses less digits than its factorization.

42844305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408056.

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

The square root of 42844305 is about 6545.5561261057. The cubic root of 42844305 is about 349.9164562505.

The spelling of 42844305 in words is "forty-two million, eight hundred forty-four thousand, three hundred five".