242010409 has 2 divisors, whose sum is σ = 242010410. Its totient is φ = 242010408.

The previous prime is 242010383. The next prime is 242010421. The reversal of 242010409 is 904010242.

242010409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196784784 + 45225625 = 14028^2 + 6725^2 .

It is a cyclic number.

It is not a de Polignac number, because 242010409 - 2⁷ = 242010281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242010409.

It is not a weakly prime, because it can be changed into another prime (242010469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121005204 + 121005205.

It is an arithmetic number, because the mean of its divisors is an integer number (121005205).

Almost surely, 2^242010409 is an apocalyptic number.

It is an amenable number.

242010409 is a deficient number, since it is larger than the sum of its proper divisors (1).

242010409 is an equidigital number, since it uses as much as digits as its factorization.

242010409 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 242010409 is about 15556.6837404377. The cubic root of 242010409 is about 623.1769029582.

The spelling of 242010409 in words is "two hundred forty-two million, ten thousand, four hundred nine".