40404404042 has 8 divisors (see below), whose sum is σ = 60658721856. Its totient is φ = 20184830092.

The previous prime is 40404404017. The next prime is 40404404057. The reversal of 40404404042 is 24040440404.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8683058 + ... + 8687709.

It is an arithmetic number, because the mean of its divisors is an integer number (7582340232).

Almost surely, 2^40404404042 is an apocalyptic number.

40404404042 is a deficient number, since it is larger than the sum of its proper divisors (20254317814).

40404404042 is a wasteful number, since it uses less digits than its factorization.

40404404042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17371932.

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

Adding to 40404404042 its reverse (24040440404), we get a palindrome (64444844446).

It can be divided in two parts, 4040440404 and 2, that multiplied together give a palindrome (8080880808).

The spelling of 40404404042 in words is "forty billion, four hundred four million, four hundred four thousand, forty-two".