440880725128 has 16 divisors (see below), whose sum is σ = 830847562380. Its totient is φ = 219321375168.

The previous prime is 440880725113. The next prime is 440880725141. The reversal of 440880725128 is 821527088044.

It can be written as a sum of positive squares in 2 ways, for example, as 376973896324 + 63906828804 = 613982^2 + 252798^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139871751 + ... + 139874902.

Almost surely, 2^440880725128 is an apocalyptic number.

It is an amenable number.

440880725128 is a deficient number, since it is larger than the sum of its proper divisors (389966837252).

440880725128 is a wasteful number, since it uses less digits than its factorization.

440880725128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279746856 (or 279746852 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 49.

The spelling of 440880725128 in words is "four hundred forty billion, eight hundred eighty million, seven hundred twenty-five thousand, one hundred twenty-eight".