440002032985 has 4 divisors (see below), whose sum is σ = 528002439588. Its totient is φ = 352001626384.

The previous prime is 440002032983. The next prime is 440002032989. The reversal of 440002032985 is 589230200044.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177690070089 + 262311962896 = 421533^2 + 512164^2 .

It is a cyclic number.

It is not a de Polignac number, because 440002032985 - 2¹ = 440002032983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440002032983) by changing a digit.

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, 44000203294 + ... + 44000203303.

It is an arithmetic number, because the mean of its divisors is an integer number (132000609897).

Almost surely, 2^440002032985 is an apocalyptic number.

It is an amenable number.

440002032985 is a deficient number, since it is larger than the sum of its proper divisors (88000406603).

440002032985 is an equidigital number, since it uses as much as digits as its factorization.

440002032985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88000406602.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 440002032985 in words is "four hundred forty billion, two million, thirty-two thousand, nine hundred eighty-five".