4004400085 has 8 divisors (see below), whose sum is σ = 5491748736. Its totient is φ = 2745874320.

The previous prime is 4004400079. The next prime is 4004400089. The reversal of 4004400085 is 5800044004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4004400085 - 2³ = 4004400077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004400089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57205681 + ... + 57205750.

It is an arithmetic number, because the mean of its divisors is an integer number (686468592).

Almost surely, 2^4004400085 is an apocalyptic number.

It is an amenable number.

4004400085 is a deficient number, since it is larger than the sum of its proper divisors (1487348651).

4004400085 is a wasteful number, since it uses less digits than its factorization.

4004400085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114411443.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4004400085 is about 63280.3293686119. The cubic root of 4004400085 is about 1587.9828969695.

Adding to 4004400085 its reverse (5800044004), we get a palindrome (9804444089).

The spelling of 4004400085 in words is "four billion, four million, four hundred thousand, eighty-five".