404444042 has 16 divisors (see below), whose sum is σ = 663075072. Its totient is φ = 184186560.

The previous prime is 404444041. The next prime is 404444123. The reversal of 404444042 is 240444404.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (404444041) 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 7 ways as a sum of consecutive naturals, for example, 190808 + ... + 192915.

It is an arithmetic number, because the mean of its divisors is an integer number (41442192).

Almost surely, 2^404444042 is an apocalyptic number.

404444042 is a deficient number, since it is larger than the sum of its proper divisors (258631030).

404444042 is a wasteful number, since it uses less digits than its factorization.

404444042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383773.

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 404444042 is about 20110.7941663177. The cubic root of 404444042 is about 739.5249215085.

Adding to 404444042 its reverse (240444404), we get a palindrome (644888446).

It can be divided in two parts, 40444404 and 2, that multiplied together give a palindrome (80888808).

The spelling of 404444042 in words is "four hundred four million, four hundred forty-four thousand, forty-two".