4400444129 has 2 divisors, whose sum is σ = 4400444130. Its totient is φ = 4400444128.

The previous prime is 4400444063. The next prime is 4400444159. The reversal of 4400444129 is 9214440044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3979086400 + 421357729 = 63080^2 + 20527^2 .

It is a cyclic number.

It is not a de Polignac number, because 4400444129 - 2²⁴ = 4383666913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4400444095 and 4400444104.

It is not a weakly prime, because it can be changed into another prime (4400444159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200222064 + 2200222065.

It is an arithmetic number, because the mean of its divisors is an integer number (2200222065).

Almost surely, 2^4400444129 is an apocalyptic number.

It is an amenable number.

4400444129 is a deficient number, since it is larger than the sum of its proper divisors (1).

4400444129 is an equidigital number, since it uses as much as digits as its factorization.

4400444129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 4400444129 is about 66335.8434709321. The cubic root of 4400444129 is about 1638.6976733367.

The spelling of 4400444129 in words is "four billion, four hundred million, four hundred forty-four thousand, one hundred twenty-nine".