20113886 has 8 divisors (see below), whose sum is σ = 32491704. Its totient is φ = 9283320.

The previous prime is 20113883. The next prime is 20113927. The reversal of 20113886 is 68831102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386780 + ... + 386831.

It is an arithmetic number, because the mean of its divisors is an integer number (4061463).

Almost surely, 2^20113886 is an apocalyptic number.

20113886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20113886 is a deficient number, since it is larger than the sum of its proper divisors (12377818).

20113886 is a wasteful number, since it uses less digits than its factorization.

20113886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773626.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 20113886 is about 4484.8507221534. The cubic root of 20113886 is about 271.9560104034.

Adding to 20113886 its reverse (68831102), we get a palindrome (88944988).

The spelling of 20113886 in words is "twenty million, one hundred thirteen thousand, eight hundred eighty-six".