428126 has 4 divisors (see below), whose sum is σ = 642192. Its totient is φ = 214062.

The previous prime is 428093. The next prime is 428137. The reversal of 428126 is 621824.

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

It is a congruent number.

It is an unprimeable number.

428126 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107030 + ... + 107033.

It is an arithmetic number, because the mean of its divisors is an integer number (160548).

2⁴²⁸¹²⁶ is an apocalyptic number.

428126 is a deficient number, since it is larger than the sum of its proper divisors (214066).

428126 is a wasteful number, since it uses less digits than its factorization.

428126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214065.

The product of its digits is 768, while the sum is 23.

The square root of 428126 is about 654.3133805754. The cubic root of 428126 is about 75.3686149683.

The spelling of 428126 in words is "four hundred twenty-eight thousand, one hundred twenty-six".