440121121536 has 72 divisors (see below), whose sum is σ = 1171464638400. Its totient is φ = 146694439936.

The previous prime is 440121121519. The next prime is 440121121537. The reversal of 440121121536 is 635121121044.

It is not an unprimeable number, because it can be changed into a prime (440121121537) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14499271 + ... + 14529593.

It is an arithmetic number, because the mean of its divisors is an integer number (16270342200).

Almost surely, 2^440121121536 is an apocalyptic number.

It is an amenable number.

440121121536 is an abundant number, since it is smaller than the sum of its proper divisors (731343516864).

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

440121121536 is a wasteful number, since it uses less digits than its factorization.

440121121536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49241 (or 49227 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 440121121536 in words is "four hundred forty billion, one hundred twenty-one million, one hundred twenty-one thousand, five hundred thirty-six".