42734005 has 16 divisors (see below), whose sum is σ = 54540864. Its totient is φ = 32032000.

The previous prime is 42733997. The next prime is 42734011. The reversal of 42734005 is 50043724.

It is not a de Polignac number, because 42734005 - 2³ = 42733997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 20334 + ... + 22336.

It is an arithmetic number, because the mean of its divisors is an integer number (3408804).

Almost surely, 2^42734005 is an apocalyptic number.

It is an amenable number.

42734005 is a deficient number, since it is larger than the sum of its proper divisors (11806859).

42734005 is a wasteful number, since it uses less digits than its factorization.

42734005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 42734005 is about 6537.1251326558. The cubic root of 42734005 is about 349.6159188092.

Adding to 42734005 its reverse (50043724), we get a palindrome (92777729).

The spelling of 42734005 in words is "forty-two million, seven hundred thirty-four thousand, five".