2342042509 has 2 divisors, whose sum is σ = 2342042510. Its totient is φ = 2342042508.

The previous prime is 2342042503. The next prime is 2342042533. The reversal of 2342042509 is 9052402432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2301120900 + 40921609 = 47970^2 + 6397^2 .

It is a cyclic number.

It is not a de Polignac number, because 2342042509 - 2¹⁵ = 2342009741 is a prime.

It is a super-2 number, since 2×2342042509² = 10970326227926030162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2342042503) 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, 1171021254 + 1171021255.

It is an arithmetic number, because the mean of its divisors is an integer number (1171021255).

Almost surely, 2^2342042509 is an apocalyptic number.

It is an amenable number.

2342042509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2342042509 is an equidigital number, since it uses as much as digits as its factorization.

2342042509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2342042509 is about 48394.6537233195. The cubic root of 2342042509 is about 1328.0005588995. Note that the first 3 decimals are identical.

The spelling of 2342042509 in words is "two billion, three hundred forty-two million, forty-two thousand, five hundred nine".