42842289 has 8 divisors (see below), whose sum is σ = 65283520. Its totient is φ = 24481296.

The previous prime is 42842269. The next prime is 42842291. The reversal of 42842289 is 98224824.

42842289 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 not a de Polignac number, because 42842289 - 2⁵ = 42842257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42842269) 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, 1020034 + ... + 1020075.

It is an arithmetic number, because the mean of its divisors is an integer number (8160440).

Almost surely, 2^42842289 is an apocalyptic number.

It is an amenable number.

42842289 is a deficient number, since it is larger than the sum of its proper divisors (22441231).

42842289 is a wasteful number, since it uses less digits than its factorization.

42842289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040119.

The product of its digits is 73728, while the sum is 39.

The square root of 42842289 is about 6545.4021266840. The cubic root of 42842289 is about 349.9109678303.

The spelling of 42842289 in words is "forty-two million, eight hundred forty-two thousand, two hundred eighty-nine".