4406001985 has 32 divisors (see below), whose sum is σ = 6610010112. Its totient is φ = 2739026880.

The previous prime is 4406001973. The next prime is 4406001991. The reversal of 4406001985 is 5891006044.

It is a happy number.

It is not a de Polignac number, because 4406001985 - 2¹¹ = 4405999937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125704 + ... + 156886.

It is an arithmetic number, because the mean of its divisors is an integer number (206562816).

Almost surely, 2^4406001985 is an apocalyptic number.

It is an amenable number.

4406001985 is a deficient number, since it is larger than the sum of its proper divisors (2204008127).

4406001985 is a wasteful number, since it uses less digits than its factorization.

4406001985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31573.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 4406001985 is about 66377.7220534119. The cubic root of 4406001985 is about 1639.3872866070.

The spelling of 4406001985 in words is "four billion, four hundred six million, one thousand, nine hundred eighty-five".