440121332488 has 16 divisors (see below), whose sum is σ = 853683619500. Its totient is φ = 212472367296.

The previous prime is 440121332411. The next prime is 440121332489. The reversal of 440121332488 is 884233121044.

It can be written as a sum of positive squares in 2 ways, for example, as 394180554244 + 45940778244 = 627838^2 + 214338^2 .

It is a super-2 number, since 2×440121332488² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 440121332488.

It is not an unprimeable number, because it can be changed into a prime (440121332489) 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 3 ways as a sum of consecutive naturals, for example, 948537123 + ... + 948537586.

Almost surely, 2^440121332488 is an apocalyptic number.

It is an amenable number.

440121332488 is a deficient number, since it is larger than the sum of its proper divisors (413562287012).

440121332488 is a wasteful number, since it uses less digits than its factorization.

440121332488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897074744 (or 1897074740 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 440121332488 in words is "four hundred forty billion, one hundred twenty-one million, three hundred thirty-two thousand, four hundred eighty-eight".