4400048309 has 2 divisors, whose sum is σ = 4400048310. Its totient is φ = 4400048308.

The previous prime is 4400048299. The next prime is 4400048347. The reversal of 4400048309 is 9038400044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2633947684 + 1766100625 = 51322^2 + 42025^2 .

It is a cyclic number.

It is not a de Polignac number, because 4400048309 - 2⁴ = 4400048293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4400048909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200024154 + 2200024155.

It is an arithmetic number, because the mean of its divisors is an integer number (2200024155).

Almost surely, 2^4400048309 is an apocalyptic number.

It is an amenable number.

4400048309 is a deficient number, since it is larger than the sum of its proper divisors (1).

4400048309 is an equidigital number, since it uses as much as digits as its factorization.

4400048309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 4400048309 is about 66332.8599488971. The cubic root of 4400048309 is about 1638.6485382386.

The spelling of 4400048309 in words is "four billion, four hundred million, forty-eight thousand, three hundred nine".