404420011 has 2 divisors, whose sum is σ = 404420012. Its totient is φ = 404420010.

The previous prime is 404419999. The next prime is 404420069. The reversal of 404420011 is 110024404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404420011 - 2⁵ = 404419979 is a prime.

It is not a weakly prime, because it can be changed into another prime (404420311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202210005 + 202210006.

It is an arithmetic number, because the mean of its divisors is an integer number (202210006).

Almost surely, 2^404420011 is an apocalyptic number.

404420011 is a deficient number, since it is larger than the sum of its proper divisors (1).

404420011 is an equidigital number, since it uses as much as digits as its factorization.

404420011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 404420011 is about 20110.1966922256. The cubic root of 404420011 is about 739.5102743439.

Adding to 404420011 its reverse (110024404), we get a palindrome (514444415).

The spelling of 404420011 in words is "four hundred four million, four hundred twenty thousand, eleven".