20118038 has 16 divisors (see below), whose sum is σ = 32341680. Its totient is φ = 9351936.

The previous prime is 20118037. The next prime is 20118041. The reversal of 20118038 is 83081102.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743 + ... + 6386.

It is an arithmetic number, because the mean of its divisors is an integer number (2021355).

Almost surely, 2^20118038 is an apocalyptic number.

20118038 is a deficient number, since it is larger than the sum of its proper divisors (12223642).

20118038 is a wasteful number, since it uses less digits than its factorization.

20118038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7231.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 20118038 is about 4485.3135899288. The cubic root of 20118038 is about 271.9747219156.

The spelling of 20118038 in words is "twenty million, one hundred eighteen thousand, thirty-eight".