425430 has 48 divisors (see below), whose sum is σ = 1151280. Its totient is φ = 108864.

The previous prime is 425423. The next prime is 425441. The reversal of 425430 is 34524.

It is a happy number.

425430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

425430 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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2529 + ... + 2691.

It is an arithmetic number, because the mean of its divisors is an integer number (23985).

2⁴²⁵⁴³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575640).

425430 is an abundant number, since it is smaller than the sum of its proper divisors (725850).

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

425430 is a wasteful number, since it uses less digits than its factorization.

425430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 425430 is about 652.2499520889. The cubic root of 425430 is about 75.2100776822.

Adding to 425430 its reverse (34524), we get a palindrome (459954).

The spelling of 425430 in words is "four hundred twenty-five thousand, four hundred thirty".