404220134020441 has 2 divisors, whose sum is σ = 404220134020442. Its totient is φ = 404220134020440.

The previous prime is 404220134020399. The next prime is 404220134020453. The reversal of 404220134020441 is 144020431022404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261294163843216 + 142925970177225 = 16164596^2 + 11955165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404220134020441 is a prime.

It is not a weakly prime, because it can be changed into another prime (404220134026441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202110067010220 + 202110067010221.

It is an arithmetic number, because the mean of its divisors is an integer number (202110067010221).

Almost surely, 2^{404220134020441} is an apocalyptic number.

It is an amenable number.

404220134020441 is a deficient number, since it is larger than the sum of its proper divisors (1).

404220134020441 is an equidigital number, since it uses as much as digits as its factorization.

404220134020441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 404220134020441 its reverse (144020431022404), we get a palindrome (548240565042845).

The spelling of 404220134020441 in words is "four hundred four trillion, two hundred twenty billion, one hundred thirty-four million, twenty thousand, four hundred forty-one".