320031441 has 6 divisors (see below), whose sum is σ = 462267650. Its totient is φ = 213354288.

The previous prime is 320031431. The next prime is 320031461. The reversal of 320031441 is 144130023.

It can be written as a sum of positive squares in only one way, i.e., 273737025 + 46294416 = 16545^2 + 6804^2 .

It is not a de Polignac number, because 320031441 - 2⁹ = 320030929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320031401) 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 5 ways as a sum of consecutive naturals, for example, 17779516 + ... + 17779533.

Almost surely, 2^320031441 is an apocalyptic number.

It is an amenable number.

320031441 is a deficient number, since it is larger than the sum of its proper divisors (142236209).

320031441 is a wasteful number, since it uses less digits than its factorization.

320031441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35559055 (or 35559052 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 320031441 is about 17889.4226010791. The cubic root of 320031441 is about 684.0127793344.

Adding to 320031441 its reverse (144130023), we get a palindrome (464161464).

The spelling of 320031441 in words is "three hundred twenty million, thirty-one thousand, four hundred forty-one".