20118936 has 32 divisors (see below), whose sum is σ = 50425200. Its totient is φ = 6689280.

The previous prime is 20118913. The next prime is 20118937. The reversal of 20118936 is 63981102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20118937) 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, 11700 + ... + 13308.

Almost surely, 2^20118936 is an apocalyptic number.

It is an amenable number.

20118936 is an abundant number, since it is smaller than the sum of its proper divisors (30306264).

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

20118936 is a wasteful number, since it uses less digits than its factorization.

20118936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139 (or 2135 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 20118936 is about 4485.4136932952. The cubic root of 20118936 is about 271.9787685273.

The spelling of 20118936 in words is "twenty million, one hundred eighteen thousand, nine hundred thirty-six".