4400047161 has 6 divisors (see below), whose sum is σ = 6355623690. Its totient is φ = 2933364768.

The previous prime is 4400047159. The next prime is 4400047163. The reversal of 4400047161 is 1617400044.

It is an interprime number because it is at equal distance from previous prime (4400047159) and next prime (4400047163).

It can be written as a sum of positive squares in only one way, i.e., 2987715600 + 1412331561 = 54660^2 + 37581^2 .

It is not a de Polignac number, because 4400047161 - 2¹ = 4400047159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4400047163) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 244447056 + ... + 244447073.

It is an arithmetic number, because the mean of its divisors is an integer number (1059270615).

Almost surely, 2^4400047161 is an apocalyptic number.

It is an amenable number.

4400047161 is a deficient number, since it is larger than the sum of its proper divisors (1955576529).

4400047161 is a wasteful number, since it uses less digits than its factorization.

4400047161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488894135 (or 488894132 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4400047161 is about 66332.8512955685. The cubic root of 4400047161 is about 1638.6483957274.

The spelling of 4400047161 in words is "four billion, four hundred million, forty-seven thousand, one hundred sixty-one".