330441421 has 2 divisors, whose sum is σ = 330441422. Its totient is φ = 330441420.

The previous prime is 330441409. The next prime is 330441439. The reversal of 330441421 is 124144033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183304521 + 147136900 = 13539^2 + 12130^2 .

It is a cyclic number.

It is not a de Polignac number, because 330441421 - 2⁹ = 330440909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 330441392 and 330441401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330441401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165220710 + 165220711.

It is an arithmetic number, because the mean of its divisors is an integer number (165220711).

Almost surely, 2^330441421 is an apocalyptic number.

It is an amenable number.

330441421 is a deficient number, since it is larger than the sum of its proper divisors (1).

330441421 is an equidigital number, since it uses as much as digits as its factorization.

330441421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 330441421 is about 18178.0477774705. The cubic root of 330441421 is about 691.3503075292.

Adding to 330441421 its reverse (124144033), we get a palindrome (454585454).

The spelling of 330441421 in words is "three hundred thirty million, four hundred forty-one thousand, four hundred twenty-one".