42342287 has 8 divisors (see below), whose sum is σ = 47582304. Its totient is φ = 37385568.

The previous prime is 42342281. The next prime is 42342301. The reversal of 42342287 is 78224324.

42342287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42342287 - 2¹⁰ = 42341263 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 (42342281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70508 + ... + 71105.

It is an arithmetic number, because the mean of its divisors is an integer number (5947788).

Almost surely, 2^42342287 is an apocalyptic number.

42342287 is a deficient number, since it is larger than the sum of its proper divisors (5240017).

42342287 is a wasteful number, since it uses less digits than its factorization.

42342287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141649.

The product of its digits is 21504, while the sum is 32.

The square root of 42342287 is about 6507.0951276280. The cubic root of 42342287 is about 348.5443955389.

The spelling of 42342287 in words is "forty-two million, three hundred forty-two thousand, two hundred eighty-seven".