20210441 has 2 divisors, whose sum is σ = 20210442. Its totient is φ = 20210440.

The previous prime is 20210431. The next prime is 20210479. The reversal of 20210441 is 14401202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 674041 = 4420^2 + 821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20210441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20210401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105220 + 10105221.

It is an arithmetic number, because the mean of its divisors is an integer number (10105221).

Almost surely, 2^20210441 is an apocalyptic number.

It is an amenable number.

20210441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210441 is an equidigital number, since it uses as much as digits as its factorization.

20210441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20210441 is about 4495.6024067971. The cubic root of 20210441 is about 272.3904831637.

Adding to 20210441 its reverse (14401202), we get a palindrome (34611643).

The spelling of 20210441 in words is "twenty million, two hundred ten thousand, four hundred forty-one".