434028 has 24 divisors (see below), whose sum is σ = 1157632. Its totient is φ = 123984.

The previous prime is 434011. The next prime is 434029. The reversal of 434028 is 820434.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 433995 and 434013.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 434028.

It is not an unprimeable number, because it can be changed into a prime (434029) by changing a digit.

434028 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, 2500 + ... + 2667.

2⁴³⁴⁰²⁸ is an apocalyptic number.

It is an amenable number.

434028 is an abundant number, since it is smaller than the sum of its proper divisors (723604).

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

434028 is a wasteful number, since it uses less digits than its factorization.

434028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5181 (or 5179 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 434028 is about 658.8080145232. The cubic root of 434028 is about 75.7133709564.

The spelling of 434028 in words is "four hundred thirty-four thousand, twenty-eight".