404424531211 has 8 divisors (see below), whose sum is σ = 411986612880. Its totient is φ = 396907328928.

The previous prime is 404424531193. The next prime is 404424531227. The reversal of 404424531211 is 112135424404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-404424531211 is a prime.

It is a super-2 number, since 2×404424531211² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404424531911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11201656 + ... + 11237701.

It is an arithmetic number, because the mean of its divisors is an integer number (51498326610).

Almost surely, 2^404424531211 is an apocalyptic number.

404424531211 is a deficient number, since it is larger than the sum of its proper divisors (7562081669).

404424531211 is a wasteful number, since it uses less digits than its factorization.

404424531211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22439693.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 404424531211 its reverse (112135424404), we get a palindrome (516559955615).

The spelling of 404424531211 in words is "four hundred four billion, four hundred twenty-four million, five hundred thirty-one thousand, two hundred eleven".