404403220011 has 96 divisors (see below), whose sum is σ = 649722560256. Its totient is φ = 222942720000.

The previous prime is 404403220007. The next prime is 404403220037. The reversal of 404403220011 is 110022304404.

It is not a de Polignac number, because 404403220011 - 2² = 404403220007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 404403220011.

It is not an unprimeable number, because it can be changed into a prime (404403221011) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 278705836 + ... + 278707286.

It is an arithmetic number, because the mean of its divisors is an integer number (6767943336).

Almost surely, 2^404403220011 is an apocalyptic number.

404403220011 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

404403220011 is a deficient number, since it is larger than the sum of its proper divisors (245319340245).

404403220011 is a wasteful number, since it uses less digits than its factorization.

404403220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993 (or 1986 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 404403220011 its reverse (110022304404), we get a palindrome (514425524415).

The spelling of 404403220011 in words is "four hundred four billion, four hundred three million, two hundred twenty thousand, eleven".