36181868 has 12 divisors (see below), whose sum is σ = 64391880. Its totient is φ = 17784192.

The previous prime is 36181853. The next prime is 36181889. The reversal of 36181868 is 86818163.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76421 + ... + 76892.

It is an arithmetic number, because the mean of its divisors is an integer number (5365990).

Almost surely, 2^36181868 is an apocalyptic number.

It is an amenable number.

36181868 is a deficient number, since it is larger than the sum of its proper divisors (28210012).

36181868 is a wasteful number, since it uses less digits than its factorization.

36181868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153376 (or 153374 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 36181868 is about 6015.1365736781. The cubic root of 36181868 is about 330.7478234901.

The spelling of 36181868 in words is "thirty-six million, one hundred eighty-one thousand, eight hundred sixty-eight".