423118 has 4 divisors (see below), whose sum is σ = 634680. Its totient is φ = 211558.

The previous prime is 423109. The next prime is 423121. The reversal of 423118 is 811324.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 423095 and 423104.

It is a congruent number.

It is an unprimeable number.

423118 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 105778 + ... + 105781.

It is an arithmetic number, because the mean of its divisors is an integer number (158670).

2⁴²³¹¹⁸ is an apocalyptic number.

423118 is a deficient number, since it is larger than the sum of its proper divisors (211562).

423118 is a wasteful number, since it uses less digits than its factorization.

423118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211561.

The product of its digits is 192, while the sum is 19.

The square root of 423118 is about 650.4752109035. The cubic root of 423118 is about 75.0735870350.

It can be divided in two parts, 42 and 3118, that added together give a triangular number (3160 = T₇₉).

The spelling of 423118 in words is "four hundred twenty-three thousand, one hundred eighteen".