42185606 has 16 divisors (see below), whose sum is σ = 65940480. Its totient is φ = 20218440.

The previous prime is 42185603. The next prime is 42185621. The reversal of 42185606 is 60658124.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42185603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3455 + ... + 9813.

It is an arithmetic number, because the mean of its divisors is an integer number (4121280).

Almost surely, 2^42185606 is an apocalyptic number.

42185606 is a deficient number, since it is larger than the sum of its proper divisors (23754874).

42185606 is a wasteful number, since it uses less digits than its factorization.

42185606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499.

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

The square root of 42185606 is about 6495.0447265589. The cubic root of 42185606 is about 348.1139528612.

The spelling of 42185606 in words is "forty-two million, one hundred eighty-five thousand, six hundred six".