36321818 has 24 divisors (see below), whose sum is σ = 60458076. Its totient is φ = 16348800.

The previous prime is 36321811. The next prime is 36321821. The reversal of 36321818 is 81812363.

It is a happy number.

36321818 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in 6 ways, for example, as 2948089 + 33373729 = 1717^2 + 5777^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (36321811) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12548 + ... + 15168.

Almost surely, 2^36321818 is an apocalyptic number.

36321818 is a deficient number, since it is larger than the sum of its proper divisors (24136258).

36321818 is a wasteful number, since it uses less digits than its factorization.

36321818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690 (or 2677 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 36321818 is about 6026.7584985629. The cubic root of 36321818 is about 331.1737145798.

The spelling of 36321818 in words is "thirty-six million, three hundred twenty-one thousand, eight hundred eighteen".