428106 has 16 divisors (see below), whose sum is σ = 978624. Its totient is φ = 122304.

The previous prime is 428093. The next prime is 428137. The reversal of 428106 is 601824.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428106.

It is an unprimeable number.

428106 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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5055 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (61164).

2⁴²⁸¹⁰⁶ is an apocalyptic number.

428106 is an abundant number, since it is smaller than the sum of its proper divisors (550518).

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

428106 is a wasteful number, since it uses less digits than its factorization.

428106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10205.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 428106 is about 654.2980972004. The cubic root of 428106 is about 75.3674413296.

The spelling of 428106 in words is "four hundred twenty-eight thousand, one hundred six".