42809995 has 8 divisors (see below), whose sum is σ = 54393984. Its totient is φ = 32233344.

The previous prime is 42809981. The next prime is 42810017. The reversal of 42809995 is 59990824.

42809995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42809995 - 2⁹ = 42809483 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 251739 + ... + 251908.

It is an arithmetic number, because the mean of its divisors is an integer number (6799248).

Almost surely, 2^42809995 is an apocalyptic number.

42809995 is a deficient number, since it is larger than the sum of its proper divisors (11583989).

42809995 is a wasteful number, since it uses less digits than its factorization.

42809995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503669.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 42809995 is about 6542.9347390907. The cubic root of 42809995 is about 349.8230261764.

The spelling of 42809995 in words is "forty-two million, eight hundred nine thousand, nine hundred ninety-five".