330441561 has 12 divisors (see below), whose sum is σ = 490205092. Its totient is φ = 214340256.

The previous prime is 330441539. The next prime is 330441569. The reversal of 330441561 is 165144033.

It can be written as a sum of positive squares in 2 ways, for example, as 135001161 + 195440400 = 11619^2 + 13980^2 .

It is not a de Polignac number, because 330441561 - 2⁶ = 330441497 is a prime.

It is a super-2 number, since 2×330441561² = 218383250472233442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330441569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 495826 + ... + 496491.

Almost surely, 2^330441561 is an apocalyptic number.

It is an amenable number.

330441561 is a deficient number, since it is larger than the sum of its proper divisors (159763531).

330441561 is a wasteful number, since it uses less digits than its factorization.

330441561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992360 (or 992357 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 330441561 is about 18178.0516282686. The cubic root of 330441561 is about 691.3504051653.

Adding to 330441561 its reverse (165144033), we get a palindrome (495585594).

The spelling of 330441561 in words is "three hundred thirty million, four hundred forty-one thousand, five hundred sixty-one".