242404399 has 2 divisors, whose sum is σ = 242404400. Its totient is φ = 242404398.

The previous prime is 242404387. The next prime is 242404433. The reversal of 242404399 is 993404242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242404399 - 2⁵ = 242404367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242404999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121202199 + 121202200.

It is an arithmetic number, because the mean of its divisors is an integer number (121202200).

Almost surely, 2^242404399 is an apocalyptic number.

242404399 is a deficient number, since it is larger than the sum of its proper divisors (1).

242404399 is an equidigital number, since it uses as much as digits as its factorization.

242404399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 242404399 is about 15569.3416366910. The cubic root of 242404399 is about 623.5148944133.

The spelling of 242404399 in words is "two hundred forty-two million, four hundred four thousand, three hundred ninety-nine".