242020393 has 2 divisors, whose sum is σ = 242020394. Its totient is φ = 242020392.

The previous prime is 242020333. The next prime is 242020403. The reversal of 242020393 is 393020242.

242020393 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., 242020249 + 144 = 15557^2 + 12^2 .

It is a cyclic number.

It is not a de Polignac number, because 242020393 - 2⁹ = 242019881 is a prime.

It is not a weakly prime, because it can be changed into another prime (242020333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121010196 + 121010197.

It is an arithmetic number, because the mean of its divisors is an integer number (121010197).

Almost surely, 2^242020393 is an apocalyptic number.

It is an amenable number.

242020393 is a deficient number, since it is larger than the sum of its proper divisors (1).

242020393 is an equidigital number, since it uses as much as digits as its factorization.

242020393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 242020393 is about 15557.0046281410. The cubic root of 242020393 is about 623.1854724417.

The spelling of 242020393 in words is "two hundred forty-two million, twenty thousand, three hundred ninety-three".