2010440309 has 2 divisors, whose sum is σ = 2010440310. Its totient is φ = 2010440308.

The previous prime is 2010440287. The next prime is 2010440317. The reversal of 2010440309 is 9030440102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1705937809 + 304502500 = 41303^2 + 17450^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010440309 - 2⁸ = 2010440053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010440389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005220154 + 1005220155.

It is an arithmetic number, because the mean of its divisors is an integer number (1005220155).

Almost surely, 2^2010440309 is an apocalyptic number.

It is an amenable number.

2010440309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010440309 is an equidigital number, since it uses as much as digits as its factorization.

2010440309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2010440309 is about 44837.9338172490. The cubic root of 2010440309 is about 1262.1095736696.

The spelling of 2010440309 in words is "two billion, ten million, four hundred forty thousand, three hundred nine".