242395993 has 6 divisors (see below), whose sum is σ = 281970906. Its totient is φ = 207767952.

The previous prime is 242395987. The next prime is 242395997. The reversal of 242395993 is 399593242.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 233081289 + 9314704 = 15267^2 + 3052^2 .

It is not a de Polignac number, because 242395993 - 2¹³ = 242387801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242395997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2473380 + ... + 2473477.

It is an arithmetic number, because the mean of its divisors is an integer number (46995151).

Almost surely, 2^242395993 is an apocalyptic number.

It is an amenable number.

242395993 is a deficient number, since it is larger than the sum of its proper divisors (39574913).

242395993 is an equidigital number, since it uses as much as digits as its factorization.

242395993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4946871 (or 4946864 counting only the distinct ones).

The product of its digits is 524880, while the sum is 46.

The square root of 242395993 is about 15569.0716807393. The cubic root of 242395993 is about 623.5076869990.

The spelling of 242395993 in words is "two hundred forty-two million, three hundred ninety-five thousand, nine hundred ninety-three".