404240421211 has 16 divisors (see below), whose sum is σ = 448283808000. Its totient is φ = 361414490400.

The previous prime is 404240421181. The next prime is 404240421257. The reversal of 404240421211 is 112124042404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 404240421211 - 2²⁵ = 404206866779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404240421281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5032240 + ... + 5111938.

It is an arithmetic number, because the mean of its divisors is an integer number (28017738000).

Almost surely, 2^404240421211 is an apocalyptic number.

404240421211 is a deficient number, since it is larger than the sum of its proper divisors (44043386789).

404240421211 is a wasteful number, since it uses less digits than its factorization.

404240421211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87330.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 404240421211 its reverse (112124042404), we get a palindrome (516364463615).

The spelling of 404240421211 in words is "four hundred four billion, two hundred forty million, four hundred twenty-one thousand, two hundred eleven".