42845605 has 8 divisors (see below), whose sum is σ = 56088864. Its totient is φ = 31160400.

The previous prime is 42845599. The next prime is 42845617. The reversal of 42845605 is 50654824.

42845605 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 42845605 - 2³ = 42845597 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 389451 + ... + 389560.

It is an arithmetic number, because the mean of its divisors is an integer number (7011108).

Almost surely, 2^42845605 is an apocalyptic number.

It is an amenable number.

42845605 is a deficient number, since it is larger than the sum of its proper divisors (13243259).

42845605 is a wasteful number, since it uses less digits than its factorization.

42845605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779027.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 42845605 is about 6545.6554293669. The cubic root of 42845605 is about 349.9199953190.

It can be divided in two parts, 4284 and 5605, that added together give a palindrome (9889).

The spelling of 42845605 in words is "forty-two million, eight hundred forty-five thousand, six hundred five".