428430 has 16 divisors (see below), whose sum is σ = 1028304. Its totient is φ = 114240.

The previous prime is 428429. The next prime is 428471. The reversal of 428430 is 34824.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 428397 and 428406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7111 + ... + 7170.

It is an arithmetic number, because the mean of its divisors is an integer number (64269).

2⁴²⁸⁴³⁰ is an apocalyptic number.

428430 is an abundant number, since it is smaller than the sum of its proper divisors (599874).

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

428430 is a wasteful number, since it uses less digits than its factorization.

428430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14291.

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

The square root of 428430 is about 654.5456439394. The cubic root of 428430 is about 75.3864497786.

It can be divided in two parts, 428 and 430, that added together give a palindrome (858).

The spelling of 428430 in words is "four hundred twenty-eight thousand, four hundred thirty".