220002320 has 20 divisors (see below), whose sum is σ = 511505580. Its totient is φ = 88000896.

The previous prime is 220002301. The next prime is 220002331. The reversal of 220002320 is 23200022.

It can be written as a sum of positive squares in 2 ways, for example, as 52765696 + 167236624 = 7264^2 + 12932^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374935 + ... + 1375094.

It is an arithmetic number, because the mean of its divisors is an integer number (25575279).

Almost surely, 2^220002320 is an apocalyptic number.

220002320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220002320 is an abundant number, since it is smaller than the sum of its proper divisors (291503260).

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

220002320 is a wasteful number, since it uses less digits than its factorization.

220002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750042 (or 2750036 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 220002320 is about 14832.4751811692. The cubic root of 220002320 is about 603.6831957028.

Adding to 220002320 its reverse (23200022), we get a palindrome (243202342).

The spelling of 220002320 in words is "two hundred twenty million, two thousand, three hundred twenty".