320002002 has 20 divisors (see below), whose sum is σ = 717041886. Its totient is φ = 106667280.

The previous prime is 320001977. The next prime is 320002021. The reversal of 320002002 is 200200023.

It can be written as a sum of positive squares in only one way, i.e., 168194961 + 151807041 = 12969^2 + 12321^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

320002002 is a modest number, since divided by 2002 gives 320 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 987499 + ... + 987822.

Almost surely, 2^320002002 is an apocalyptic number.

320002002 is an abundant number, since it is smaller than the sum of its proper divisors (397039884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320002002 is a wasteful number, since it uses less digits than its factorization.

320002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975335 (or 1975326 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 320002002 is about 17888.5997775119. The cubic root of 320002002 is about 683.9918050726.

Adding to 320002002 its reverse (200200023), we get a palindrome (520202025).

The spelling of 320002002 in words is "three hundred twenty million, two thousand, two".