320433442 has 96 divisors (see below), whose sum is σ = 638254080. Its totient is φ = 119508480.

The previous prime is 320433419. The next prime is 320433457. The reversal of 320433442 is 244334023.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1677567 + ... + 1677757.

It is an arithmetic number, because the mean of its divisors is an integer number (6648480).

Almost surely, 2^320433442 is an apocalyptic number.

320433442 is a deficient number, since it is larger than the sum of its proper divisors (317820638).

320433442 is a wasteful number, since it uses less digits than its factorization.

320433442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 320433442 is about 17900.6547924929. The cubic root of 320433442 is about 684.2990624222.

Adding to 320433442 its reverse (244334023), we get a palindrome (564767465).

The spelling of 320433442 in words is "three hundred twenty million, four hundred thirty-three thousand, four hundred forty-two".