4400438085 has 24 divisors (see below), whose sum is σ = 7959055104. Its totient is φ = 2244860640.

The previous prime is 4400438059. The next prime is 4400438089. The reversal of 4400438085 is 5808340044.

It is not a de Polignac number, because 4400438085 - 2⁷ = 4400437957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400438089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2124781 + ... + 2126850.

It is an arithmetic number, because the mean of its divisors is an integer number (331627296).

Almost surely, 2^4400438085 is an apocalyptic number.

4400438085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4400438085 is a deficient number, since it is larger than the sum of its proper divisors (3558617019).

4400438085 is a wasteful number, since it uses less digits than its factorization.

4400438085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251665 (or 4251662 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 4400438085 is about 66335.7979148514. The cubic root of 4400438085 is about 1638.6969230872.

The spelling of 4400438085 in words is "four billion, four hundred million, four hundred thirty-eight thousand, eighty-five".