1440998849 has 2 divisors, whose sum is σ = 1440998850. Its totient is φ = 1440998848.

The previous prime is 1440998827. The next prime is 1440998879. The reversal of 1440998849 is 9488990441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1440961600 + 37249 = 37960^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440998849 - 2⁸ = 1440998593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1440998794 and 1440998803.

It is not a weakly prime, because it can be changed into another prime (1440998879) 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 as a sum of consecutive naturals, namely, 720499424 + 720499425.

It is an arithmetic number, because the mean of its divisors is an integer number (720499425).

Almost surely, 2^1440998849 is an apocalyptic number.

It is an amenable number.

1440998849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440998849 is an equidigital number, since it uses as much as digits as its factorization.

1440998849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 1440998849 is about 37960.4906317081. The cubic root of 1440998849 is about 1129.5042723375.

The spelling of 1440998849 in words is "one billion, four hundred forty million, nine hundred ninety-eight thousand, eight hundred forty-nine".