42495679 has 4 divisors (see below), whose sum is σ = 42520720. Its totient is φ = 42470640.

The previous prime is 42495667. The next prime is 42495683. The reversal of 42495679 is 97659424.

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 42495679 - 2¹¹ = 42493631 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 (42495659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9774 + ... + 13435.

It is an arithmetic number, because the mean of its divisors is an integer number (10630180).

Almost surely, 2^42495679 is an apocalyptic number.

42495679 is a deficient number, since it is larger than the sum of its proper divisors (25041).

42495679 is a wasteful number, since it uses less digits than its factorization.

42495679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25040.

The product of its digits is 544320, while the sum is 46.

The square root of 42495679 is about 6518.8709912070. The cubic root of 42495679 is about 348.9647750591.

The spelling of 42495679 in words is "forty-two million, four hundred ninety-five thousand, six hundred seventy-nine".