330232021 has 12 divisors (see below), whose sum is σ = 406745388. Its totient is φ = 266404992.

The previous prime is 330232013. The next prime is 330232031. The reversal of 330232021 is 120232033.

It can be written as a sum of positive squares in 2 ways, for example, as 237591396 + 92640625 = 15414^2 + 9625^2 .

It is not a de Polignac number, because 330232021 - 2³ = 330232013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 330231986 and 330232004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330232031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197386 + ... + 199051.

It is an arithmetic number, because the mean of its divisors is an integer number (33895449).

Almost surely, 2^330232021 is an apocalyptic number.

It is an amenable number.

330232021 is a deficient number, since it is larger than the sum of its proper divisors (76513367).

330232021 is a wasteful number, since it uses less digits than its factorization.

330232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396468 (or 396461 counting only the distinct ones).

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

The square root of 330232021 is about 18172.2871703041. The cubic root of 330232021 is about 691.2042409489.

Adding to 330232021 its reverse (120232033), we get a palindrome (450464054).

The spelling of 330232021 in words is "three hundred thirty million, two hundred thirty-two thousand, twenty-one".