440644220422 has 8 divisors (see below), whose sum is σ = 755390092176. Its totient is φ = 188847523032.

The previous prime is 440644220417. The next prime is 440644220461. The reversal of 440644220422 is 224022446044.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15737293573 + ... + 15737293600.

It is an arithmetic number, because the mean of its divisors is an integer number (94423761522).

Almost surely, 2^440644220422 is an apocalyptic number.

440644220422 is a deficient number, since it is larger than the sum of its proper divisors (314745871754).

440644220422 is a wasteful number, since it uses less digits than its factorization.

440644220422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31474587182.

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 440644220422 its reverse (224022446044), we get a palindrome (664666666466).

The spelling of 440644220422 in words is "four hundred forty billion, six hundred forty-four million, two hundred twenty thousand, four hundred twenty-two".