4000444005 has 32 divisors (see below), whose sum is σ = 6782952960. Its totient is φ = 2009745920.

The previous prime is 4000443803. The next prime is 4000444009. The reversal of 4000444005 is 5004440004.

It is not a de Polignac number, because 4000444005 - 2¹⁰ = 4000442981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000444009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94317 + ... + 129986.

It is an arithmetic number, because the mean of its divisors is an integer number (211967280).

Almost surely, 2^4000444005 is an apocalyptic number.

It is an amenable number.

4000444005 is a deficient number, since it is larger than the sum of its proper divisors (2782508955).

4000444005 is a wasteful number, since it uses less digits than its factorization.

4000444005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224381.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 4000444005 is about 63249.0632736960. The cubic root of 4000444005 is about 1587.4597842955.

Adding to 4000444005 its reverse (5004440004), we get a palindrome (9004884009).

The spelling of 4000444005 in words is "four billion, four hundred forty-four thousand, five".