4431244085 has 4 divisors (see below), whose sum is σ = 5317492908. Its totient is φ = 3544995264.

The previous prime is 4431244079. The next prime is 4431244093. The reversal of 4431244085 is 5804421344.

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 1761145156 + 2670098929 = 41966^2 + 51673^2 .

It is a cyclic number.

It is not a de Polignac number, because 4431244085 - 2⁸ = 4431243829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443124404 + ... + 443124413.

It is an arithmetic number, because the mean of its divisors is an integer number (1329373227).

Almost surely, 2^4431244085 is an apocalyptic number.

It is an amenable number.

4431244085 is a deficient number, since it is larger than the sum of its proper divisors (886248823).

4431244085 is an equidigital number, since it uses as much as digits as its factorization.

4431244085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886248822.

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 4431244085 is about 66567.5903499593. The cubic root of 4431244085 is about 1642.5120244195.

The spelling of 4431244085 in words is "four billion, four hundred thirty-one million, two hundred forty-four thousand, eighty-five".