20118854 has 16 divisors (see below), whose sum is σ = 36518688. Its totient is φ = 8115072.

The previous prime is 20118841. The next prime is 20118869. The reversal of 20118854 is 45881102.

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, 42029 + ... + 42504.

It is an arithmetic number, because the mean of its divisors is an integer number (2282418).

Almost surely, 2^20118854 is an apocalyptic number.

20118854 is a deficient number, since it is larger than the sum of its proper divisors (16399834).

20118854 is a wasteful number, since it uses less digits than its factorization.

20118854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84559.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 20118854 is about 4485.4045525460. The cubic root of 20118854 is about 271.9783990199.

Adding to 20118854 its reverse (45881102), we get a palindrome (65999956).

The spelling of 20118854 in words is "twenty million, one hundred eighteen thousand, eight hundred fifty-four".