20267441 has 2 divisors, whose sum is σ = 20267442. Its totient is φ = 20267440.

The previous prime is 20267419. The next prime is 20267473. The reversal of 20267441 is 14476202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17305600 + 2961841 = 4160^2 + 1721^2 .

It is a cyclic number.

It is not a de Polignac number, because 20267441 - 2²² = 16073137 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20267441.

It is not a weakly prime, because it can be changed into another prime (20267641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133720 + 10133721.

It is an arithmetic number, because the mean of its divisors is an integer number (10133721).

Almost surely, 2^20267441 is an apocalyptic number.

It is an amenable number.

20267441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20267441 is an equidigital number, since it uses as much as digits as its factorization.

20267441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 20267441 is about 4501.9374718003. The cubic root of 20267441 is about 272.6463193097.

The spelling of 20267441 in words is "twenty million, two hundred sixty-seven thousand, four hundred forty-one".