320440232 has 32 divisors (see below), whose sum is σ = 716515200. Its totient is φ = 131360064.

The previous prime is 320440231. The next prime is 320440243. The reversal of 320440232 is 232044023.

It is not an unprimeable number, because it can be changed into a prime (320440231) 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 7 ways as a sum of consecutive naturals, for example, 123107 + ... + 125682.

It is an arithmetic number, because the mean of its divisors is an integer number (22391100).

Almost surely, 2^320440232 is an apocalyptic number.

It is an amenable number.

320440232 is an abundant number, since it is smaller than the sum of its proper divisors (396074968).

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

320440232 is a wasteful number, since it uses less digits than its factorization.

320440232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248825 (or 248821 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 320440232 is about 17900.8444493549. The cubic root of 320440232 is about 684.3038958314.

Adding to 320440232 its reverse (232044023), we get a palindrome (552484255).

It can be divided in two parts, 32044023 and 2, that multiplied together give a palindrome (64088046).

The spelling of 320440232 in words is "three hundred twenty million, four hundred forty thousand, two hundred thirty-two".