42956635 has 4 divisors (see below), whose sum is σ = 51547968. Its totient is φ = 34365304.

The previous prime is 42956623. The next prime is 42956647. The reversal of 42956635 is 53665924.

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

It is an interprime number because it is at equal distance from previous prime (42956623) and next prime (42956647).

It is a cyclic number.

It is not a de Polignac number, because 42956635 - 2¹⁹ = 42432347 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4295659 + ... + 4295668.

It is an arithmetic number, because the mean of its divisors is an integer number (12886992).

Almost surely, 2^42956635 is an apocalyptic number.

42956635 is a deficient number, since it is larger than the sum of its proper divisors (8591333).

42956635 is an equidigital number, since it uses as much as digits as its factorization.

42956635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591332.

The product of its digits is 194400, while the sum is 40.

The square root of 42956635 is about 6554.1311399758. The cubic root of 42956635 is about 350.2219952193.

The spelling of 42956635 in words is "forty-two million, nine hundred fifty-six thousand, six hundred thirty-five".