330331421 has 8 divisors (see below), whose sum is σ = 381764160. Its totient is φ = 279959328.

The previous prime is 330331387. The next prime is 330331427. The reversal of 330331421 is 124133033.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 330331421 - 2⁶ = 330331357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 330331393 and 330331402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330331427) 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, 264491 + ... + 265736.

It is an arithmetic number, because the mean of its divisors is an integer number (47720520).

Almost surely, 2^330331421 is an apocalyptic number.

It is an amenable number.

330331421 is a deficient number, since it is larger than the sum of its proper divisors (51432739).

330331421 is an equidigital number, since it uses as much as digits as its factorization.

330331421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530323.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 330331421 is about 18175.0218981986. The cubic root of 330331421 is about 691.2735849302.

Adding to 330331421 its reverse (124133033), we get a palindrome (454464454).

The spelling of 330331421 in words is "three hundred thirty million, three hundred thirty-one thousand, four hundred twenty-one".