242040255 has 8 divisors (see below), whose sum is σ = 387264432. Its totient is φ = 129088128.

The previous prime is 242040251. The next prime is 242040257. The reversal of 242040255 is 552040242.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242040255 - 2² = 242040251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242040251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8067994 + ... + 8068023.

It is an arithmetic number, because the mean of its divisors is an integer number (48408054).

Almost surely, 2^242040255 is an apocalyptic number.

242040255 is a deficient number, since it is larger than the sum of its proper divisors (145224177).

242040255 is a wasteful number, since it uses less digits than its factorization.

242040255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16136025.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 242040255 is about 15557.6429770065. The cubic root of 242040255 is about 623.2025197259.

Adding to 242040255 its reverse (552040242), we get a palindrome (794080497).

The spelling of 242040255 in words is "two hundred forty-two million, forty thousand, two hundred fifty-five".