2010440209 has 2 divisors, whose sum is σ = 2010440210. Its totient is φ = 2010440208.

The previous prime is 2010440171. The next prime is 2010440233. The reversal of 2010440209 is 9020440102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1871860225 + 138579984 = 43265^2 + 11772^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010440209 - 2¹⁷ = 2010309137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2010440209.

It is not a weakly prime, because it can be changed into another prime (2010440309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005220104 + 1005220105.

It is an arithmetic number, because the mean of its divisors is an integer number (1005220105).

Almost surely, 2^2010440209 is an apocalyptic number.

It is an amenable number.

2010440209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010440209 is an equidigital number, since it uses as much as digits as its factorization.

2010440209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2010440209 is about 44837.9327021218. The cubic root of 2010440209 is about 1262.1095527437.

It can be divided in two parts, 20104 and 40209, that multiplied together give a triangular number (808361736 = T₄₀₂₀₈).

The spelling of 2010440209 in words is "two billion, ten million, four hundred forty thousand, two hundred nine".