320422066 has 16 divisors (see below), whose sum is σ = 484009344. Its totient is φ = 159089824.

The previous prime is 320422051. The next prime is 320422121. The reversal of 320422066 is 660224023.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 320422066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233715 + ... + 235081.

It is an arithmetic number, because the mean of its divisors is an integer number (30250584).

Almost surely, 2^320422066 is an apocalyptic number.

320422066 is a deficient number, since it is larger than the sum of its proper divisors (163587278).

320422066 is a wasteful number, since it uses less digits than its factorization.

320422066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 320422066 is about 17900.3370359332. The cubic root of 320422066 is about 684.2909643512.

Adding to 320422066 its reverse (660224023), we get a palindrome (980646089).

The spelling of 320422066 in words is "three hundred twenty million, four hundred twenty-two thousand, sixty-six".