4400043971 has 2 divisors, whose sum is σ = 4400043972. Its totient is φ = 4400043970.

The previous prime is 4400043953. The next prime is 4400044013. The reversal of 4400043971 is 1793400044.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4400043971 is a prime.

It is not a weakly prime, because it can be changed into another prime (4400045971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200021985 + 2200021986.

It is an arithmetic number, because the mean of its divisors is an integer number (2200021986).

Almost surely, 2^4400043971 is an apocalyptic number.

4400043971 is a deficient number, since it is larger than the sum of its proper divisors (1).

4400043971 is an equidigital number, since it uses as much as digits as its factorization.

4400043971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 4400043971 is about 66332.8272501632. The cubic root of 4400043971 is about 1638.6479997249.

The spelling of 4400043971 in words is "four billion, four hundred million, forty-three thousand, nine hundred seventy-one".