42579013 has 4 divisors (see below), whose sum is σ = 42598368. Its totient is φ = 42559660.

The previous prime is 42579007. The next prime is 42579041. The reversal of 42579013 is 31097524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42579013 - 2¹⁷ = 42447941 is a prime.

It is a Smith number, since the sum of its digits (31) 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42579413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5881 + ... + 10942.

It is an arithmetic number, because the mean of its divisors is an integer number (10649592).

Almost surely, 2^42579013 is an apocalyptic number.

It is an amenable number.

42579013 is a deficient number, since it is larger than the sum of its proper divisors (19355).

42579013 is a wasteful number, since it uses less digits than its factorization.

42579013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19354.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 42579013 is about 6525.2596116936. The cubic root of 42579013 is about 349.1927326845.

The spelling of 42579013 in words is "forty-two million, five hundred seventy-nine thousand, thirteen".