404240105530042 has 8 divisors (see below), whose sum is σ = 606362475580596. Its totient is φ = 202119280336512.

The previous prime is 404240105530039. The next prime is 404240105530061. The reversal of 404240105530042 is 240035501042404.

It can be written as a sum of positive squares in 2 ways, for example, as 397593191388121 + 6646914141921 = 19939739^2 + 2578161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385559863 + ... + 386606890.

Almost surely, 2^{404240105530042} is an apocalyptic number.

404240105530042 is a deficient number, since it is larger than the sum of its proper divisors (202122370050554).

404240105530042 is a wasteful number, since it uses less digits than its factorization.

404240105530042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772428512.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 404240105530042 its reverse (240035501042404), we get a palindrome (644275606572446).

The spelling of 404240105530042 in words is "four hundred four trillion, two hundred forty billion, one hundred five million, five hundred thirty thousand, forty-two".