330220881 has 20 divisors (see below), whose sum is σ = 495438372. Its totient is φ = 219189888.

The previous prime is 330220859. The next prime is 330220889. The reversal of 330220881 is 188022033.

It can be written as a sum of positive squares in 2 ways, for example, as 21902400 + 308318481 = 4680^2 + 17559^2 .

It is not a de Polignac number, because 330220881 - 2⁷ = 330220753 is a prime.

It is a super-2 number, since 2×330220881² = 218091660496832322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330220889) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10125 + ... + 27621.

Almost surely, 2^330220881 is an apocalyptic number.

It is an amenable number.

330220881 is a deficient number, since it is larger than the sum of its proper divisors (165217491).

330220881 is a wasteful number, since it uses less digits than its factorization.

330220881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17742 (or 17733 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 330220881 is about 18171.9806570445. The cubic root of 330220881 is about 691.1964685330.

The spelling of 330220881 in words is "three hundred thirty million, two hundred twenty thousand, eight hundred eighty-one".