320230240 has 96 divisors (see below), whose sum is σ = 841137696. Its totient is φ = 114216960.

The previous prime is 320230201. The next prime is 320230249. The reversal of 320230240 is 42032023.

It is a super-2 number, since 2×320230240² = 205094813220915200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320230249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91564 + ... + 94996.

It is an arithmetic number, because the mean of its divisors is an integer number (8761851).

Almost surely, 2^320230240 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 320230240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420568848).

320230240 is an abundant number, since it is smaller than the sum of its proper divisors (520907456).

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

320230240 is a wasteful number, since it uses less digits than its factorization.

320230240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512 (or 3504 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 320230240 is about 17894.9780664856. The cubic root of 320230240 is about 684.1543830357.

Adding to 320230240 its reverse (42032023), we get a palindrome (362262263).

The spelling of 320230240 in words is "three hundred twenty million, two hundred thirty thousand, two hundred forty".