36642186 has 128 divisors (see below), whose sum is σ = 99532800. Its totient is φ = 9771840.

The previous prime is 36642169. The next prime is 36642209. The reversal of 36642186 is 68124663.

36642186 is a `hidden beast` number, since 3 + 6 + 642 + 1 + 8 + 6 = 666.

36642186 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 36642186.

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 63 ways as a sum of consecutive naturals, for example, 621025 + ... + 621083.

It is an arithmetic number, because the mean of its divisors is an integer number (777600).

Almost surely, 2^36642186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36642186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49766400).

36642186 is an abundant number, since it is smaller than the sum of its proper divisors (62890614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36642186 is a wasteful number, since it uses less digits than its factorization.

36642186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 155 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 36642186 is about 6053.2789461580. The cubic root of 36642186 is about 332.1445456135.

The spelling of 36642186 in words is "thirty-six million, six hundred forty-two thousand, one hundred eighty-six".