42825218 has 16 divisors (see below), whose sum is σ = 67326336. Its totient is φ = 20391360.

The previous prime is 42825217. The next prime is 42825269. The reversal of 42825218 is 81252824.

It is not an unprimeable number, because it can be changed into a prime (42825217) 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 7 ways as a sum of consecutive naturals, for example, 9155 + ... + 13017.

It is an arithmetic number, because the mean of its divisors is an integer number (4207896).

Almost surely, 2^42825218 is an apocalyptic number.

42825218 is a deficient number, since it is larger than the sum of its proper divisors (24501118).

42825218 is a wasteful number, since it uses less digits than its factorization.

42825218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4129.

The product of its digits is 10240, while the sum is 32.

The square root of 42825218 is about 6544.0979515897. The cubic root of 42825218 is about 349.8644863138.

The spelling of 42825218 in words is "forty-two million, eight hundred twenty-five thousand, two hundred eighteen".