22040441 has 2 divisors, whose sum is σ = 22040442. Its totient is φ = 22040440.

The previous prime is 22040429. The next prime is 22040443. The reversal of 22040441 is 14404022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20839225 + 1201216 = 4565^2 + 1096^2 .

It is a cyclic number.

It is not a de Polignac number, because 22040441 - 2¹⁰ = 22039417 is a prime.

Together with 22040443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22040443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11020220 + 11020221.

It is an arithmetic number, because the mean of its divisors is an integer number (11020221).

Almost surely, 2^22040441 is an apocalyptic number.

It is an amenable number.

22040441 is a deficient number, since it is larger than the sum of its proper divisors (1).

22040441 is an equidigital number, since it uses as much as digits as its factorization.

22040441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22040441 is about 4694.7248055663. The cubic root of 22040441 is about 280.3755208066.

Adding to 22040441 its reverse (14404022), we get a palindrome (36444463).

The spelling of 22040441 in words is "twenty-two million, forty thousand, four hundred forty-one".