320445041 has 16 divisors (see below), whose sum is σ = 380860800. Its totient is φ = 263789568.

The previous prime is 320445011. The next prime is 320445043. The reversal of 320445041 is 140544023.

It is a de Polignac number, because none of the positive numbers 2^k-320445041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320444998 and 320445016.

It is not an unprimeable number, because it can be changed into a prime (320445043) 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, 35090 + ... + 43268.

It is an arithmetic number, because the mean of its divisors is an integer number (23803800).

Almost surely, 2^320445041 is an apocalyptic number.

It is an amenable number.

320445041 is a deficient number, since it is larger than the sum of its proper divisors (60415759).

320445041 is a wasteful number, since it uses less digits than its factorization.

320445041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 320445041 is about 17900.9787721230. The cubic root of 320445041 is about 684.3073190397.

Adding to 320445041 its reverse (140544023), we get a palindrome (460989064).

The spelling of 320445041 in words is "three hundred twenty million, four hundred forty-five thousand, forty-one".