42275709 has 16 divisors (see below), whose sum is σ = 71578240. Its totient is φ = 24157440.

The previous prime is 42275693. The next prime is 42275773. The reversal of 42275709 is 90757224.

42275709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42275709 - 2⁴ = 42275693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42275789) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 111652 + ... + 112029.

It is an arithmetic number, because the mean of its divisors is an integer number (4473640).

Almost surely, 2^42275709 is an apocalyptic number.

It is an amenable number.

42275709 is a deficient number, since it is larger than the sum of its proper divisors (29302531).

42275709 is a wasteful number, since it uses less digits than its factorization.

42275709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223697 (or 223691 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 42275709 is about 6501.9773146328. The cubic root of 42275709 is about 348.3616187486.

The spelling of 42275709 in words is "forty-two million, two hundred seventy-five thousand, seven hundred nine".