320303641 has 12 divisors (see below), whose sum is σ = 372979728. Its totient is φ = 274264872.

The previous prime is 320303629. The next prime is 320303651. The reversal of 320303641 is 146303023.

It is not a de Polignac number, because 320303641 - 2¹¹ = 320301593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320303611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55410 + ... + 60916.

It is an arithmetic number, because the mean of its divisors is an integer number (31081644).

Almost surely, 2^320303641 is an apocalyptic number.

It is an amenable number.

320303641 is a deficient number, since it is larger than the sum of its proper divisors (52676087).

320303641 is a wasteful number, since it uses less digits than its factorization.

320303641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6708 (or 6701 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 320303641 is about 17897.0288316245. The cubic root of 320303641 is about 684.2066514489.

Adding to 320303641 its reverse (146303023), we get a palindrome (466606664).

The spelling of 320303641 in words is "three hundred twenty million, three hundred three thousand, six hundred forty-one".