2444447161 has 8 divisors (see below), whose sum is σ = 2635189704. Its totient is φ = 2254091520.

The previous prime is 2444447129. The next prime is 2444447167. The reversal of 2444447161 is 1617444442.

It can be written as a sum of positive squares in 4 ways, for example, as 675740025 + 1768707136 = 25995^2 + 42056^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2444447161 - 2⁵ = 2444447129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2444447161.

It is not an unprimeable number, because it can be changed into a prime (2444447167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83530 + ... + 108931.

It is an arithmetic number, because the mean of its divisors is an integer number (329398713).

Almost surely, 2^2444447161 is an apocalyptic number.

It is an amenable number.

2444447161 is a deficient number, since it is larger than the sum of its proper divisors (190742543).

2444447161 is a wasteful number, since it uses less digits than its factorization.

2444447161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193451.

The product of its digits is 86016, while the sum is 37.

The square root of 2444447161 is about 49441.3507198175. The cubic root of 2444447161 is about 1347.0805058854.

The spelling of 2444447161 in words is "two billion, four hundred forty-four million, four hundred forty-seven thousand, one hundred sixty-one".