404434431312 has 40 divisors (see below), whose sum is σ = 1044812711040. Its totient is φ = 134808410880.

The previous prime is 404434431283. The next prime is 404434431367. The reversal of 404434431312 is 213134434404.

It is a congruent number.

It is an unprimeable number.

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, 3218137 + ... + 3341447.

It is an arithmetic number, because the mean of its divisors is an integer number (26120317776).

Almost surely, 2^404434431312 is an apocalyptic number.

It is an amenable number.

404434431312 is an abundant number, since it is smaller than the sum of its proper divisors (640378279728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404434431312 is a wasteful number, since it uses less digits than its factorization.

404434431312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191651 (or 191645 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 404434431312 its reverse (213134434404), we get a palindrome (617568865716).

The spelling of 404434431312 in words is "four hundred four billion, four hundred thirty-four million, four hundred thirty-one thousand, three hundred twelve".