4406000644 has 6 divisors (see below), whose sum is σ = 7710501134. Its totient is φ = 2203000320.

The previous prime is 4406000623. The next prime is 4406000657. The reversal of 4406000644 is 4460006044.

It can be written as a sum of positive squares in only one way, i.e., 3324906244 + 1081094400 = 57662^2 + 32880^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550750077 + ... + 550750084.

Almost surely, 2^4406000644 is an apocalyptic number.

It is an amenable number.

4406000644 is a deficient number, since it is larger than the sum of its proper divisors (3304500490).

4406000644 is a wasteful number, since it uses less digits than its factorization.

4406000644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101500165 (or 1101500163 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 4406000644 is about 66377.7119521304. The cubic root of 4406000644 is about 1639.3871202871.

Adding to 4406000644 its reverse (4460006044), we get a palindrome (8866006688).

The spelling of 4406000644 in words is "four billion, four hundred six million, six hundred forty-four", and thus it is an aban number.