320430 has 32 divisors (see below), whose sum is σ = 839808. Its totient is φ = 77600.

The previous prime is 320417. The next prime is 320431. The reversal of 320430 is 34023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320431) by changing a digit.

320430 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (26244).

2³²⁰⁴³⁰ is an apocalyptic number.

320430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320430 is an abundant number, since it is smaller than the sum of its proper divisors (519378).

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

320430 is a wasteful number, since it uses less digits than its factorization.

320430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 320430 is about 566.0653672501. The cubic root of 320430 is about 68.4296612235.

Adding to 320430 its reverse (34023), we get a palindrome (354453).

The spelling of 320430 in words is "three hundred twenty thousand, four hundred thirty".