20113854 has 16 divisors (see below), whose sum is σ = 41525760. Its totient is φ = 6488280.

The previous prime is 20113843. The next prime is 20113859. The reversal of 20113854 is 45831102.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53884 + ... + 54255.

It is an arithmetic number, because the mean of its divisors is an integer number (2595360).

Almost surely, 2^20113854 is an apocalyptic number.

20113854 is an abundant number, since it is smaller than the sum of its proper divisors (21411906).

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

20113854 is a wasteful number, since it uses less digits than its factorization.

20113854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108175.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 20113854 is about 4484.8471545862. The cubic root of 20113854 is about 271.9558661814.

Adding to 20113854 its reverse (45831102), we get a palindrome (65944956).

The spelling of 20113854 in words is "twenty million, one hundred thirteen thousand, eight hundred fifty-four".