42808218 has 16 divisors (see below), whose sum is σ = 85683936. Its totient is φ = 14258160.

The previous prime is 42808187. The next prime is 42808219. The reversal of 42808218 is 81280824.

42808218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42808219) 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, 9753 + ... + 13443.

It is an arithmetic number, because the mean of its divisors is an integer number (5355246).

Almost surely, 2^42808218 is an apocalyptic number.

42808218 is an abundant number, since it is smaller than the sum of its proper divisors (42875718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42808218 is a wasteful number, since it uses less digits than its factorization.

42808218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5629.

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 42808218 is about 6542.7989423488. The cubic root of 42808218 is about 349.8181858416.

The spelling of 42808218 in words is "forty-two million, eight hundred eight thousand, two hundred eighteen".