320233442 has 4 divisors (see below), whose sum is σ = 480350166. Its totient is φ = 160116720.

The previous prime is 320233363. The next prime is 320233447. The reversal of 320233442 is 244332023.

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

It can be written as a sum of positive squares in only one way, i.e., 292786321 + 27447121 = 17111^2 + 5239^2 .

It is not an unprimeable number, because it can be changed into a prime (320233447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80058359 + ... + 80058362.

Almost surely, 2^320233442 is an apocalyptic number.

320233442 is a deficient number, since it is larger than the sum of its proper divisors (160116724).

320233442 is a wasteful number, since it uses less digits than its factorization.

320233442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160116723.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 320233442 is about 17895.0675327030. The cubic root of 320233442 is about 684.1566633274.

Adding to 320233442 its reverse (244332023), we get a palindrome (564565465).

The spelling of 320233442 in words is "three hundred twenty million, two hundred thirty-three thousand, four hundred forty-two".