36181386 has 24 divisors (see below), whose sum is σ = 81097380. Its totient is φ = 11644416.

The previous prime is 36181381. The next prime is 36181391. The reversal of 36181386 is 68318163.

36181386 is a `hidden beast` number, since 3 + 618 + 1 + 38 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (36181381) and next prime (36181391).

It can be written as a sum of positive squares in 2 ways, for example, as 31708161 + 4473225 = 5631^2 + 2115^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 36181386.

It is not an unprimeable number, because it can be changed into a prime (36181381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34135 + ... + 35178.

Almost surely, 2^36181386 is an apocalyptic number.

36181386 is an abundant number, since it is smaller than the sum of its proper divisors (44915994).

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

36181386 is a wasteful number, since it uses less digits than its factorization.

36181386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69350 (or 69347 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 36181386 is about 6015.0965079540. The cubic root of 36181386 is about 330.7463547880.

The spelling of 36181386 in words is "thirty-six million, one hundred eighty-one thousand, three hundred eighty-six".