320230500 has 144 divisors (see below), whose sum is σ = 963336192. Its totient is φ = 82656000.

The previous prime is 320230483. The next prime is 320230507. The reversal of 320230500 is 5032023.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 320230500.

It is not an unprimeable number, because it can be changed into a prime (320230507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2521437 + ... + 2521563.

Almost surely, 2^320230500 is an apocalyptic number.

320230500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320230500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481668096).

320230500 is an abundant number, since it is smaller than the sum of its proper divisors (643105692).

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

320230500 is a wasteful number, since it uses less digits than its factorization.

320230500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 320230500 is about 17894.9853310921. The cubic root of 320230500 is about 684.1545681943.

Adding to 320230500 its reverse (5032023), we get a palindrome (325262523).

The spelling of 320230500 in words is "three hundred twenty million, two hundred thirty thousand, five hundred".