428118 has 8 divisors (see below), whose sum is σ = 856248. Its totient is φ = 142704.

The previous prime is 428093. The next prime is 428137. The reversal of 428118 is 811824.

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

428118 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428118.

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, 35671 + ... + 35682.

It is an arithmetic number, because the mean of its divisors is an integer number (107031).

2⁴²⁸¹¹⁸ is an apocalyptic number.

428118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428118 is a wasteful number, since it uses less digits than its factorization.

428118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71358.

The product of its digits is 512, while the sum is 24.

The square root of 428118 is about 654.3072672682. The cubic root of 428118 is about 75.3681455172.

The spelling of 428118 in words is "four hundred twenty-eight thousand, one hundred eighteen".