404404411 has 2 divisors, whose sum is σ = 404404412. Its totient is φ = 404404410.

The previous prime is 404404387. The next prime is 404404433. The reversal of 404404411 is 114404404.

It is a happy number.

It is an a-pointer prime, because the next prime (404404433) can be obtained adding 404404411 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404404411 - 2¹¹ = 404402363 is a prime.

It is not a weakly prime, because it can be changed into another prime (404404811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202202205 + 202202206.

It is an arithmetic number, because the mean of its divisors is an integer number (202202206).

Almost surely, 2^404404411 is an apocalyptic number.

404404411 is a deficient number, since it is larger than the sum of its proper divisors (1).

404404411 is an equidigital number, since it uses as much as digits as its factorization.

404404411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 404404411 is about 20109.8088255458. The cubic root of 404404411 is about 739.5007656580.

Adding to 404404411 its reverse (114404404), we get a palindrome (518808815).

The spelling of 404404411 in words is "four hundred four million, four hundred four thousand, four hundred eleven".