42660185 has 8 divisors (see below), whose sum is σ = 52843776. Its totient is φ = 33027120.

The previous prime is 42660179. The next prime is 42660209. The reversal of 42660185 is 58106624.

42660185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42660185 - 2⁴ = 42660169 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 137459 + ... + 137768.

It is an arithmetic number, because the mean of its divisors is an integer number (6605472).

Almost surely, 2^42660185 is an apocalyptic number.

It is an amenable number.

42660185 is a deficient number, since it is larger than the sum of its proper divisors (10183591).

42660185 is a wasteful number, since it uses less digits than its factorization.

42660185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275263.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 42660185 is about 6531.4764793269. The cubic root of 42660185 is about 349.4144904441.

The spelling of 42660185 in words is "forty-two million, six hundred sixty thousand, one hundred eighty-five".