404204341242 has 128 divisors (see below), whose sum is σ = 893555712000. Its totient is φ = 121134067200.

The previous prime is 404204341241. The next prime is 404204341291. The reversal of 404204341242 is 242143402404.

It is a super-2 number, since 2×404204341242² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404204341241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 499634134 + ... + 499634942.

It is an arithmetic number, because the mean of its divisors is an integer number (6980904000).

Almost surely, 2^404204341242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404204341242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446777856000).

404204341242 is an abundant number, since it is smaller than the sum of its proper divisors (489351370758).

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

404204341242 is a wasteful number, since it uses less digits than its factorization.

404204341242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 404204341242 its reverse (242143402404), we get a palindrome (646347743646).

The spelling of 404204341242 in words is "four hundred four billion, two hundred four million, three hundred forty-one thousand, two hundred forty-two".