42318879 has 8 divisors (see below), whose sum is σ = 56785200. Its totient is φ = 28032576.

The previous prime is 42318841. The next prime is 42318883. The reversal of 42318879 is 97881324.

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

It is not a de Polignac number, because 42318879 - 2⁸ = 42318623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42318879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42318979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44454 + ... + 45395.

It is an arithmetic number, because the mean of its divisors is an integer number (7098150).

Almost surely, 2^42318879 is an apocalyptic number.

42318879 is a deficient number, since it is larger than the sum of its proper divisors (14466321).

42318879 is a wasteful number, since it uses less digits than its factorization.

42318879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90009.

The product of its digits is 96768, while the sum is 42.

The square root of 42318879 is about 6505.2962269216. The cubic root of 42318879 is about 348.4801553375.

The spelling of 42318879 in words is "forty-two million, three hundred eighteen thousand, eight hundred seventy-nine".