320300240 has 80 divisors (see below), whose sum is σ = 808448256. Its totient is φ = 117312000.

The previous prime is 320300177. The next prime is 320300243. The reversal of 320300240 is 42003023.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320300243) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 135065 + ... + 137415.

Almost surely, 2^320300240 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 320300240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404224128).

320300240 is an abundant number, since it is smaller than the sum of its proper divisors (488148016).

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

320300240 is a wasteful number, since it uses less digits than its factorization.

320300240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508 (or 2502 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 320300240 is about 17896.9338156009. The cubic root of 320300240 is about 684.2042297936.

Adding to 320300240 its reverse (42003023), we get a palindrome (362303263).

The spelling of 320300240 in words is "three hundred twenty million, three hundred thousand, two hundred forty".