42108485 has 4 divisors (see below), whose sum is σ = 50530188. Its totient is φ = 33686784.

The previous prime is 42108463. The next prime is 42108491. The reversal of 42108485 is 58480124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17447329 + 24661156 = 4177^2 + 4966^2 .

It is a cyclic number.

It is not a de Polignac number, because 42108485 - 2⁸ = 42108229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4210844 + ... + 4210853.

It is an arithmetic number, because the mean of its divisors is an integer number (12632547).

Almost surely, 2^42108485 is an apocalyptic number.

It is an amenable number.

42108485 is a deficient number, since it is larger than the sum of its proper divisors (8421703).

42108485 is an equidigital number, since it uses as much as digits as its factorization.

42108485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8421702.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 42108485 is about 6489.1051000889. The cubic root of 42108485 is about 347.9016903127.

The spelling of 42108485 in words is "forty-two million, one hundred eight thousand, four hundred eighty-five".