320448089 has 4 divisors (see below), whose sum is σ = 345097956. Its totient is φ = 295798224.

The previous prime is 320448059. The next prime is 320448103. The reversal of 320448089 is 980844023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104857600 + 215590489 = 10240^2 + 14683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320448089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320448019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12324914 + ... + 12324939.

It is an arithmetic number, because the mean of its divisors is an integer number (86274489).

Almost surely, 2^320448089 is an apocalyptic number.

It is an amenable number.

320448089 is a deficient number, since it is larger than the sum of its proper divisors (24649867).

320448089 is a wasteful number, since it uses less digits than its factorization.

320448089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24649866.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 320448089 is about 17901.0639069302. The cubic root of 320448089 is about 684.3094886911.

The spelling of 320448089 in words is "three hundred twenty million, four hundred forty-eight thousand, eighty-nine".