42344305 has 4 divisors (see below), whose sum is σ = 50813172. Its totient is φ = 33875440.

The previous prime is 42344273. The next prime is 42344327. The reversal of 42344305 is 50344324.

42344305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32001649 + 10342656 = 5657^2 + 3216^2 .

It is not a de Polignac number, because 42344305 - 2⁵ = 42344273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42344305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4234426 + ... + 4234435.

It is an arithmetic number, because the mean of its divisors is an integer number (12703293).

Almost surely, 2^42344305 is an apocalyptic number.

It is an amenable number.

42344305 is a deficient number, since it is larger than the sum of its proper divisors (8468867).

42344305 is an equidigital number, since it uses as much as digits as its factorization.

42344305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8468866.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 42344305 is about 6507.2501872911. The cubic root of 42344305 is about 348.5499325679.

Adding to 42344305 its reverse (50344324), we get a palindrome (92688629).

The spelling of 42344305 in words is "forty-two million, three hundred forty-four thousand, three hundred five".