42418 has 8 divisors (see below), whose sum is σ = 64512. Its totient is φ = 20916.

The previous prime is 42409. The next prime is 42433. The reversal of 42418 is 81424.

42418 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 plaindrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 42395 and 42404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171 + ... + 337.

It is an arithmetic number, because the mean of its divisors is an integer number (8064).

2⁴²⁴¹⁸ is an apocalyptic number.

42418 is a deficient number, since it is larger than the sum of its proper divisors (22094).

42418 is a wasteful number, since it uses less digits than its factorization.

42418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296.

The product of its digits is 256, while the sum is 19.

The square root of 42418 is about 205.9563060457. The cubic root of 42418 is about 34.8752017991.

The spelling of 42418 in words is "forty-two thousand, four hundred eighteen".