42308086 has 16 divisors (see below), whose sum is σ = 66670848. Its totient is φ = 20097000.

The previous prime is 42308083. The next prime is 42308093. The reversal of 42308086 is 68080324.

It is a happy number.

42308086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42308081) 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, 3901 + ... + 9991.

It is an arithmetic number, because the mean of its divisors is an integer number (4166928).

Almost surely, 2^42308086 is an apocalyptic number.

42308086 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42308086 is a deficient number, since it is larger than the sum of its proper divisors (24362762).

42308086 is a wasteful number, since it uses less digits than its factorization.

42308086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6267.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 42308086 is about 6504.4666191779. The cubic root of 42308086 is about 348.4505273780.

The spelling of 42308086 in words is "forty-two million, three hundred eight thousand, eighty-six".