320543052 has 12 divisors (see below), whose sum is σ = 747933816. Its totient is φ = 106847680.

The previous prime is 320543033. The next prime is 320543059. The reversal of 320543052 is 250345023.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (320543059) 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 3 ways as a sum of consecutive naturals, for example, 13355949 + ... + 13355972.

It is an arithmetic number, because the mean of its divisors is an integer number (62327818).

Almost surely, 2^320543052 is an apocalyptic number.

It is an amenable number.

320543052 is an abundant number, since it is smaller than the sum of its proper divisors (427390764).

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

320543052 is a wasteful number, since it uses less digits than its factorization.

320543052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26711928 (or 26711926 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 320543052 is about 17903.7161505649. The cubic root of 320543052 is about 684.3770791121.

Adding to 320543052 its reverse (250345023), we get a palindrome (570888075).

The spelling of 320543052 in words is "three hundred twenty million, five hundred forty-three thousand, fifty-two".