330666920 has 32 divisors (see below), whose sum is σ = 745669800. Its totient is φ = 131970048.

The previous prime is 330666913. The next prime is 330666923. The reversal of 330666920 is 29666033.

It can be written as a sum of positive squares in 4 ways, for example, as 330585124 + 81796 = 18182^2 + 286^2 .

It is a super-2 number, since 2×330666920² = 218681223964572800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (330666923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9236 + ... + 27324.

Almost surely, 2^330666920 is an apocalyptic number.

It is an amenable number.

330666920 is an abundant number, since it is smaller than the sum of its proper divisors (415002880).

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

330666920 is a wasteful number, since it uses less digits than its factorization.

330666920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18557 (or 18553 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 330666920 is about 18184.2492283844. The cubic root of 330666920 is about 691.5075349467.

The spelling of 330666920 in words is "three hundred thirty million, six hundred sixty-six thousand, nine hundred twenty".