36861318 has 80 divisors (see below), whose sum is σ = 92939616. Its totient is φ = 10834560.

The previous prime is 36861317. The next prime is 36861353. The reversal of 36861318 is 81316863.

36861318 is a `hidden beast` number, since 36 + 8 + 613 + 1 + 8 = 666.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36861313) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48058 + ... + 48818.

Almost surely, 2^36861318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36861318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46469808).

36861318 is an abundant number, since it is smaller than the sum of its proper divisors (56078298).

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

36861318 is a wasteful number, since it uses less digits than its factorization.

36861318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 802 counting only the distinct ones).

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

The square root of 36861318 is about 6071.3522381756. The cubic root of 36861318 is about 332.8053403340.

The spelling of 36861318 in words is "thirty-six million, eight hundred sixty-one thousand, three hundred eighteen".