42306851 has 4 divisors (see below), whose sum is σ = 42379512. Its totient is φ = 42234192.

The previous prime is 42306811. The next prime is 42306871. The reversal of 42306851 is 15860324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42306851 - 2¹⁰ = 42305827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42306811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35450 + ... + 36623.

It is an arithmetic number, because the mean of its divisors is an integer number (10594878).

Almost surely, 2^42306851 is an apocalyptic number.

42306851 is a deficient number, since it is larger than the sum of its proper divisors (72661).

42306851 is an equidigital number, since it uses as much as digits as its factorization.

42306851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72660.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 42306851 is about 6504.3716837216. The cubic root of 42306851 is about 348.4471368473.

The spelling of 42306851 in words is "forty-two million, three hundred six thousand, eight hundred fifty-one".