242331287 has 8 divisors (see below), whose sum is σ = 264632592. Its totient is φ = 220075200.

The previous prime is 242331283. The next prime is 242331343. The reversal of 242331287 is 782133242.

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

It is a cyclic number.

It is not a de Polignac number, because 242331287 - 2² = 242331283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242331283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443 + ... + 22019.

It is an arithmetic number, because the mean of its divisors is an integer number (33079074).

Almost surely, 2^242331287 is an apocalyptic number.

242331287 is a deficient number, since it is larger than the sum of its proper divisors (22301305).

242331287 is a wasteful number, since it uses less digits than its factorization.

242331287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22609.

The product of its digits is 16128, while the sum is 32.

The square root of 242331287 is about 15566.9935119149. The cubic root of 242331287 is about 623.4522016499.

The spelling of 242331287 in words is "two hundred forty-two million, three hundred thirty-one thousand, two hundred eighty-seven".