2002323220 has 12 divisors (see below), whose sum is σ = 4204878804. Its totient is φ = 800929280.

The previous prime is 2002323181. The next prime is 2002323229. The reversal of 2002323220 is 223232002.

It can be written as a sum of positive squares in 2 ways, for example, as 768065796 + 1234257424 = 27714^2 + 35132^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2002323194 and 2002323203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002323229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50058061 + ... + 50058100.

It is an arithmetic number, because the mean of its divisors is an integer number (350406567).

Almost surely, 2^2002323220 is an apocalyptic number.

2002323220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002323220 is an abundant number, since it is smaller than the sum of its proper divisors (2202555584).

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

2002323220 is a wasteful number, since it uses less digits than its factorization.

2002323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100116170 (or 100116168 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 2002323220 is about 44747.3264005795. The cubic root of 2002323220 is about 1260.4087067515.

Adding to 2002323220 its reverse (223232002), we get a palindrome (2225555222).

The spelling of 2002323220 in words is "two billion, two million, three hundred twenty-three thousand, two hundred twenty".