2041742009 has 2 divisors, whose sum is σ = 2041742010. Its totient is φ = 2041742008.

The previous prime is 2041741991. The next prime is 2041742051. The reversal of 2041742009 is 9002471402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1648116409 + 393625600 = 40597^2 + 19840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2041742009 - 2²⁰ = 2040693433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2041742089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020871004 + 1020871005.

It is an arithmetic number, because the mean of its divisors is an integer number (1020871005).

Almost surely, 2^2041742009 is an apocalyptic number.

It is an amenable number.

2041742009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2041742009 is an equidigital number, since it uses as much as digits as its factorization.

2041742009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 2041742009 is about 45185.6394112112. The cubic root of 2041742009 is about 1268.6260398875.

It can be divided in two parts, 20417 and 42009, that added together give a palindrome (62426).

The spelling of 2041742009 in words is "two billion, forty-one million, seven hundred forty-two thousand, nine".