20182118 has 16 divisors (see below), whose sum is σ = 33094656. Its totient is φ = 9154440.

The previous prime is 20182087. The next prime is 20182121. The reversal of 20182118 is 81128102.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20182093 and 20182102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18455 + ... + 19517.

It is an arithmetic number, because the mean of its divisors is an integer number (2068416).

Almost surely, 2^20182118 is an apocalyptic number.

20182118 is a deficient number, since it is larger than the sum of its proper divisors (12912538).

20182118 is a wasteful number, since it uses less digits than its factorization.

20182118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 20182118 is about 4492.4512239979. The cubic root of 20182118 is about 272.2631806081.

The spelling of 20182118 in words is "twenty million, one hundred eighty-two thousand, one hundred eighteen".