440871970457 has 16 divisors (see below), whose sum is σ = 479598766992. Its totient is φ = 403574906880.

The previous prime is 440871970433. The next prime is 440871970481. The reversal of 440871970457 is 754079178044.

It is an interprime number because it is at equal distance from previous prime (440871970433) and next prime (440871970481).

It can be written as a sum of positive squares in 8 ways, for example, as 124329580816 + 316542389641 = 352604^2 + 562621^2 .

It is a cyclic number.

It is not a de Polignac number, because 440871970457 - 2⁶ = 440871970393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440871978457) 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 15 ways as a sum of consecutive naturals, for example, 1596233 + ... + 1851945.

It is an arithmetic number, because the mean of its divisors is an integer number (29974922937).

Almost surely, 2^440871970457 is an apocalyptic number.

It is an amenable number.

440871970457 is a deficient number, since it is larger than the sum of its proper divisors (38726796535).

440871970457 is a wasteful number, since it uses less digits than its factorization.

440871970457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258508.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 440871970457 in words is "four hundred forty billion, eight hundred seventy-one million, nine hundred seventy thousand, four hundred fifty-seven".