404000212242 has 64 divisors (see below), whose sum is σ = 898652880000. Its totient is φ = 120038630400.

The previous prime is 404000212211. The next prime is 404000212249. The reversal of 404000212242 is 242212000404.

It is not an unprimeable number, because it can be changed into a prime (404000212249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5634634 + ... + 5705882.

It is an arithmetic number, because the mean of its divisors is an integer number (14041451250).

Almost surely, 2^404000212242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404000212242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449326440000).

404000212242 is an abundant number, since it is smaller than the sum of its proper divisors (494652667758).

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

404000212242 is a wasteful number, since it uses less digits than its factorization.

404000212242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72939.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 404000212242 its reverse (242212000404), we get a palindrome (646212212646).

The spelling of 404000212242 in words is "four hundred four billion, two hundred twelve thousand, two hundred forty-two".