320425000 has 96 divisors (see below), whose sum is σ = 858695040. Its totient is φ = 109800000.

The previous prime is 320424977. The next prime is 320425037. The reversal of 320425000 is 524023.

It is an unprimeable 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 23 ways as a sum of consecutive naturals, for example, 174085 + ... + 175915.

It is an arithmetic number, because the mean of its divisors is an integer number (8944740).

Almost surely, 2^320425000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320425000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429347520).

320425000 is an abundant number, since it is smaller than the sum of its proper divisors (538270040).

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

320425000 is an equidigital number, since it uses as much as digits as its factorization.

320425000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 320425000 is about 17900.4189895097. The cubic root of 320425000 is about 684.2930529543.

Adding to 320425000 its reverse (524023), we get a palindrome (320949023).

The spelling of 320425000 in words is "three hundred twenty million, four hundred twenty-five thousand".