20033118 has 24 divisors (see below), whose sum is σ = 49606128. Its totient is φ = 5723712.

The previous prime is 20033093. The next prime is 20033137. The reversal of 20033118 is 81133002.

It is a super-3 number, since 3×20033118³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20033118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79371 + ... + 79622.

It is an arithmetic number, because the mean of its divisors is an integer number (2066922).

Almost surely, 2^20033118 is an apocalyptic number.

20033118 is an abundant number, since it is smaller than the sum of its proper divisors (29573010).

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

20033118 is a wasteful number, since it uses less digits than its factorization.

20033118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159008 (or 159005 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20033118 is about 4475.8371284040. The cubic root of 20033118 is about 271.5915058405.

The spelling of 20033118 in words is "twenty million, thirty-three thousand, one hundred eighteen".