404331212000 has 96 divisors (see below), whose sum is σ = 994270062240. Its totient is φ = 161597644800.

The previous prime is 404331211993. The next prime is 404331212017. The reversal of 404331212000 is 212133404.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4826471 + ... + 4909529.

It is an arithmetic number, because the mean of its divisors is an integer number (10356979815).

Almost surely, 2^404331212000 is an apocalyptic number.

404331212000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404331212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497135031120).

404331212000 is an abundant number, since it is smaller than the sum of its proper divisors (589938850240).

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

404331212000 is a wasteful number, since it uses less digits than its factorization.

404331212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84301 (or 84283 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 404331212000 its reverse (212133404), we get a palindrome (404543345404).

The spelling of 404331212000 in words is "four hundred four billion, three hundred thirty-one million, two hundred twelve thousand".