36518386 has 4 divisors (see below), whose sum is σ = 54777582. Its totient is φ = 18259192.

The previous prime is 36518381. The next prime is 36518387. The reversal of 36518386 is 68381563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68381563 = 41 ⋅1667843.

It can be written as a sum of positive squares in only one way, i.e., 30041361 + 6477025 = 5481^2 + 2545^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (36518381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9129595 + ... + 9129598.

Almost surely, 2^36518386 is an apocalyptic number.

36518386 is a deficient number, since it is larger than the sum of its proper divisors (18259196).

36518386 is a wasteful number, since it uses less digits than its factorization.

36518386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18259195.

The product of its digits is 103680, while the sum is 40.

The square root of 36518386 is about 6043.0444314104. The cubic root of 36518386 is about 331.7700602148.

The spelling of 36518386 in words is "thirty-six million, five hundred eighteen thousand, three hundred eighty-six".