42086836 has 24 divisors (see below), whose sum is σ = 81454464. Its totient is φ = 18866880.

The previous prime is 42086831. The next prime is 42086867. The reversal of 42086836 is 63868024.

It is a junction number, because it is equal to n+sod(n) for n = 42086795 and 42086804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42086831) 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, 3340 + ... + 9763.

It is an arithmetic number, because the mean of its divisors is an integer number (3393936).

Almost surely, 2^42086836 is an apocalyptic number.

It is an amenable number.

42086836 is a deficient number, since it is larger than the sum of its proper divisors (39367628).

42086836 is a wasteful number, since it uses less digits than its factorization.

42086836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13191 (or 13189 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 42086836 is about 6487.4367819656. The cubic root of 42086836 is about 347.8420585085.

The spelling of 42086836 in words is "forty-two million, eighty-six thousand, eight hundred thirty-six".