20118036 has 24 divisors (see below), whose sum is σ = 49413280. Its totient is φ = 6352992.

The previous prime is 20118029. The next prime is 20118037. The reversal of 20118036 is 63081102.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20118037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43891 + ... + 44346.

Almost surely, 2^20118036 is an apocalyptic number.

It is an amenable number.

20118036 is an abundant number, since it is smaller than the sum of its proper divisors (29295244).

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

20118036 is a wasteful number, since it uses less digits than its factorization.

20118036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88263 (or 88261 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20118036 is about 4485.3133669789. The cubic root of 20118036 is about 271.9747129029.

Adding to 20118036 its reverse (63081102), we get a palindrome (83199138).

The spelling of 20118036 in words is "twenty million, one hundred eighteen thousand, thirty-six".