42195285 has 24 divisors (see below), whose sum is σ = 79788384. Its totient is φ = 20458080.

The previous prime is 42195259. The next prime is 42195287. The reversal of 42195285 is 58259124.

42195285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42195285 - 2⁵ = 42195253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42195287) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 42127 + ... + 43116.

It is an arithmetic number, because the mean of its divisors is an integer number (3324516).

Almost surely, 2^42195285 is an apocalyptic number.

42195285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42195285 is a deficient number, since it is larger than the sum of its proper divisors (37593099).

42195285 is a wasteful number, since it uses less digits than its factorization.

42195285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85265 (or 85262 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 42195285 is about 6495.7897903180. The cubic root of 42195285 is about 348.1405744004.

The spelling of 42195285 in words is "forty-two million, one hundred ninety-five thousand, two hundred eighty-five".