20203086 has 8 divisors (see below), whose sum is σ = 40406184. Its totient is φ = 6734360.

The previous prime is 20203069. The next prime is 20203093. The reversal of 20203086 is 68030202.

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

20203086 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1683585 + ... + 1683596.

It is an arithmetic number, because the mean of its divisors is an integer number (5050773).

Almost surely, 2^20203086 is an apocalyptic number.

20203086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20203086 is a wasteful number, since it uses less digits than its factorization.

20203086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367186.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20203086 is about 4494.7843107317. The cubic root of 20203086 is about 272.3574362997.

Adding to 20203086 its reverse (68030202), we get a palindrome (88233288).

The spelling of 20203086 in words is "twenty million, two hundred three thousand, eighty-six".