20023441 has 2 divisors, whose sum is σ = 20023442. Its totient is φ = 20023440.

The previous prime is 20023429. The next prime is 20023447. The reversal of 20023441 is 14432002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16769025 + 3254416 = 4095^2 + 1804^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023441 - 2⁷ = 20023313 is a prime.

It is equal to p_1272004 and since 20023441 and 1272004 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (20023447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011720 + 10011721.

It is an arithmetic number, because the mean of its divisors is an integer number (10011721).

Almost surely, 2^20023441 is an apocalyptic number.

It is an amenable number.

20023441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023441 is an equidigital number, since it uses as much as digits as its factorization.

20023441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20023441 is about 4474.7559710000. The cubic root of 20023441 is about 271.5477680276.

Adding to 20023441 its reverse (14432002), we get a palindrome (34455443).

The spelling of 20023441 in words is "twenty million, twenty-three thousand, four hundred forty-one".