320434423442 has 32 divisors (see below), whose sum is σ = 573494688000. Its totient is φ = 131290555968.

The previous prime is 320434423409. The next prime is 320434423447. The reversal of 320434423442 is 244324434023.

It is not an unprimeable number, because it can be changed into a prime (320434423447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372284 + ... + 882872.

It is an arithmetic number, because the mean of its divisors is an integer number (17921709000).

Almost surely, 2^320434423442 is an apocalyptic number.

320434423442 is a deficient number, since it is larger than the sum of its proper divisors (253060264558).

320434423442 is a wasteful number, since it uses less digits than its factorization.

320434423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512570.

The product of its (nonzero) digits is 221184, while the sum is 35.

Adding to 320434423442 its reverse (244324434023), we get a palindrome (564758857465).

The spelling of 320434423442 in words is "three hundred twenty billion, four hundred thirty-four million, four hundred twenty-three thousand, four hundred forty-two".