20330441 has 4 divisors (see below), whose sum is σ = 20448132. Its totient is φ = 20212752.

The previous prime is 20330411. The next prime is 20330467. The reversal of 20330441 is 14403302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14403302 = 2 ⋅7201651.

It can be written as a sum of positive squares in 2 ways, for example, as 11155600 + 9174841 = 3340^2 + 3029^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330441 - 2¹⁰ = 20329417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58586 + ... + 58931.

It is an arithmetic number, because the mean of its divisors is an integer number (5112033).

Almost surely, 2^20330441 is an apocalyptic number.

It is an amenable number.

20330441 is a deficient number, since it is larger than the sum of its proper divisors (117691).

20330441 is a wasteful number, since it uses less digits than its factorization.

20330441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117690.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20330441 is about 4508.9290302687. The cubic root of 20330441 is about 272.9285281198.

Adding to 20330441 its reverse (14403302), we get a palindrome (34733743).

The spelling of 20330441 in words is "twenty million, three hundred thirty thousand, four hundred forty-one".