404402442042 has 16 divisors (see below), whose sum is σ = 808816836960. Its totient is φ = 134798821872.

The previous prime is 404402441983. The next prime is 404402442107. The reversal of 404402442042 is 240244204404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23413 + ... + 899640.

It is an arithmetic number, because the mean of its divisors is an integer number (50551052310).

Almost surely, 2^404402442042 is an apocalyptic number.

404402442042 is an abundant number, since it is smaller than the sum of its proper divisors (404414394918).

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

404402442042 is a wasteful number, since it uses less digits than its factorization.

404402442042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996077.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 404402442042 its reverse (240244204404), we get a palindrome (644646646446).

The spelling of 404402442042 in words is "four hundred four billion, four hundred two million, four hundred forty-two thousand, forty-two".