42182785 has 16 divisors (see below), whose sum is σ = 53475840. Its totient is φ = 31893120.

The previous prime is 42182779. The next prime is 42182801. The reversal of 42182785 is 58728124.

It is not a de Polignac number, because 42182785 - 2¹¹ = 42180737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3501 + ... + 9829.

It is an arithmetic number, because the mean of its divisors is an integer number (3342240).

Almost surely, 2^42182785 is an apocalyptic number.

It is an amenable number.

42182785 is a deficient number, since it is larger than the sum of its proper divisors (11293055).

42182785 is a wasteful number, since it uses less digits than its factorization.

42182785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408.

The product of its digits is 35840, while the sum is 37.

The square root of 42182785 is about 6494.8275573721. The cubic root of 42182785 is about 348.1061930948.

The spelling of 42182785 in words is "forty-two million, one hundred eighty-two thousand, seven hundred eighty-five".