20710118 has 48 divisors (see below), whose sum is σ = 38208240. Its totient is φ = 8352960.

The previous prime is 20710117. The next prime is 20710141. The reversal of 20710118 is 81101702.

It is a self number, because there is not a number n which added to its sum of digits gives 20710118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20710111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91121 + ... + 91347.

It is an arithmetic number, because the mean of its divisors is an integer number (796005).

Almost surely, 2^20710118 is an apocalyptic number.

20710118 is a deficient number, since it is larger than the sum of its proper divisors (17498122).

20710118 is a wasteful number, since it uses less digits than its factorization.

20710118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 20710118 is about 4550.8370658594. The cubic root of 20710118 is about 274.6170670196.

The spelling of 20710118 in words is "twenty million, seven hundred ten thousand, one hundred eighteen".