330321220 has 36 divisors (see below), whose sum is σ = 736892100. Its totient is φ = 124354048.

The previous prime is 330321209. The next prime is 330321247. The reversal of 330321220 is 22123033.

It can be written as a sum of positive squares in 6 ways, for example, as 2566404 + 327754816 = 1602^2 + 18104^2 .

It is a super-2 number, since 2×330321220² = 218224216764576800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 330321194 and 330321203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22795 + ... + 34354.

It is an arithmetic number, because the mean of its divisors is an integer number (20469225).

Almost surely, 2^330321220 is an apocalyptic number.

It is an amenable number.

330321220 is an abundant number, since it is smaller than the sum of its proper divisors (406570880).

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

330321220 is a wasteful number, since it uses less digits than its factorization.

330321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57192 (or 57173 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 330321220 is about 18174.7412636329. The cubic root of 330321220 is about 691.2664690924.

Adding to 330321220 its reverse (22123033), we get a palindrome (352444253).

The spelling of 330321220 in words is "three hundred thirty million, three hundred twenty-one thousand, two hundred twenty".