440040004042 has 8 divisors (see below), whose sum is σ = 660469223556. Its totient is φ = 219883596192.

The previous prime is 440040003979. The next prime is 440040004043. The reversal of 440040004042 is 240400040044.

It can be written as a sum of positive squares in 2 ways, for example, as 439885971121 + 154032921 = 663239^2 + 12411^2 .

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

It is not an unprimeable number, because it can be changed into a prime (440040004043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68198883 + ... + 68205334.

Almost surely, 2^440040004042 is an apocalyptic number.

440040004042 is a deficient number, since it is larger than the sum of its proper divisors (220429219514).

440040004042 is a wasteful number, since it uses less digits than its factorization.

440040004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136405832.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 440040004042 its reverse (240400040044), we get a palindrome (680440044086).

The spelling of 440040004042 in words is "four hundred forty billion, forty million, four thousand, forty-two".