428134 has 16 divisors (see below), whose sum is σ = 749088. Its totient is φ = 179712.

The previous prime is 428093. The next prime is 428137. The reversal of 428134 is 431824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428137) by changing a digit.

428134 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 in 7 ways as a sum of consecutive naturals, for example, 454 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (46818).

2⁴²⁸¹³⁴ is an apocalyptic number.

428134 is a deficient number, since it is larger than the sum of its proper divisors (320954).

428134 is a wasteful number, since it uses less digits than its factorization.

428134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639.

The product of its digits is 768, while the sum is 22.

The square root of 428134 is about 654.3194938255. The cubic root of 428134 is about 75.3690844135.

Adding to 428134 its reverse (431824), we get a palindrome (859958).

The spelling of 428134 in words is "four hundred twenty-eight thousand, one hundred thirty-four".