20354441 has 2 divisors, whose sum is σ = 20354442. Its totient is φ = 20354440.

The previous prime is 20354413. The next prime is 20354449. The reversal of 20354441 is 14445302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15178816 + 5175625 = 3896^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 20354441 - 2¹⁴ = 20338057 is a prime.

It is a Chen prime.

It is equal to p_1291631 and since 20354441 and 1291631 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 (20354449) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10177220 + 10177221.

It is an arithmetic number, because the mean of its divisors is an integer number (10177221).

Almost surely, 2^20354441 is an apocalyptic number.

It is an amenable number.

20354441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20354441 is an equidigital number, since it uses as much as digits as its factorization.

20354441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 20354441 is about 4511.5896311611. The cubic root of 20354441 is about 273.0358828797.

Adding to 20354441 its reverse (14445302), we get a palindrome (34799743).

The spelling of 20354441 in words is "twenty million, three hundred fifty-four thousand, four hundred forty-one".