404021312002 has 24 divisors (see below), whose sum is σ = 769064688720. Its totient is φ = 157410900360.

The previous prime is 404021311987. The next prime is 404021312011. The reversal of 404021312002 is 200213120404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187392852 + ... + 187395007.

It is an arithmetic number, because the mean of its divisors is an integer number (32044362030).

Almost surely, 2^404021312002 is an apocalyptic number.

404021312002 is a deficient number, since it is larger than the sum of its proper divisors (365043376718).

404021312002 is a wasteful number, since it uses less digits than its factorization.

404021312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374787886 (or 374787879 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 404021312002 its reverse (200213120404), we get a palindrome (604234432406).

The spelling of 404021312002 in words is "four hundred four billion, twenty-one million, three hundred twelve thousand, two".