42185852 has 12 divisors (see below), whose sum is σ = 77710920. Its totient is φ = 19982736.

The previous prime is 42185839. The next prime is 42185873. The reversal of 42185852 is 25858124.

It is a happy number.

42185852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42185852² = 3559292217931808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 277463 + ... + 277614.

It is an arithmetic number, because the mean of its divisors is an integer number (6475910).

Almost surely, 2^42185852 is an apocalyptic number.

It is an amenable number.

42185852 is a deficient number, since it is larger than the sum of its proper divisors (35525068).

42185852 is a wasteful number, since it uses less digits than its factorization.

42185852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555100 (or 555098 counting only the distinct ones).

The product of its digits is 25600, while the sum is 35.

The square root of 42185852 is about 6495.0636640452. The cubic root of 42185852 is about 348.1146295207.

The spelling of 42185852 in words is "forty-two million, one hundred eighty-five thousand, eight hundred fifty-two".