42185574 has 12 divisors (see below), whose sum is σ = 91402116. Its totient is φ = 14061852.

The previous prime is 42185569. The next prime is 42185593. The reversal of 42185574 is 47558124.

42185574 is a `hidden beast` number, since 4 + 2 + 1 + 85 + 574 = 666.

42185574 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 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 5 ways as a sum of consecutive naturals, for example, 1171804 + ... + 1171839.

It is an arithmetic number, because the mean of its divisors is an integer number (7616843).

Almost surely, 2^42185574 is an apocalyptic number.

42185574 is an abundant number, since it is smaller than the sum of its proper divisors (49216542).

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

42185574 is a wasteful number, since it uses less digits than its factorization.

42185574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343651 (or 2343648 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 42185574 is about 6495.0422631419. The cubic root of 42185574 is about 348.1138648403.

The spelling of 42185574 in words is "forty-two million, one hundred eighty-five thousand, five hundred seventy-four".