42069079 has 4 divisors (see below), whose sum is σ = 45305176. Its totient is φ = 38832984.

The previous prime is 42069073. The next prime is 42069127. The reversal of 42069079 is 97096024.

42069079 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 is a cyclic number.

It is not a de Polignac number, because 42069079 - 2⁹ = 42068567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42069073) 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 3 ways as a sum of consecutive naturals, for example, 1618029 + ... + 1618054.

It is an arithmetic number, because the mean of its divisors is an integer number (11326294).

Almost surely, 2^42069079 is an apocalyptic number.

42069079 is a deficient number, since it is larger than the sum of its proper divisors (3236097).

42069079 is a wasteful number, since it uses less digits than its factorization.

42069079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236096.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 42069079 is about 6486.0680693314. The cubic root of 42069079 is about 347.7931318852.

The spelling of 42069079 in words is "forty-two million, sixty-nine thousand, seventy-nine".