4044672644 has 12 divisors (see below), whose sum is σ = 7082659584. Its totient is φ = 2021055624.

The previous prime is 4044672617. The next prime is 4044672677. The reversal of 4044672644 is 4462764404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313052 + ... + 325715.

It is an arithmetic number, because the mean of its divisors is an integer number (590221632).

Almost surely, 2^4044672644 is an apocalyptic number.

It is an amenable number.

4044672644 is a deficient number, since it is larger than the sum of its proper divisors (3037986940).

4044672644 is a wasteful number, since it uses less digits than its factorization.

4044672644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640354 (or 640352 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 41.

The square root of 4044672644 is about 63597.7408718266. The cubic root of 4044672644 is about 1593.2886383982.

The spelling of 4044672644 in words is "four billion, forty-four million, six hundred seventy-two thousand, six hundred forty-four".