20243676 has 12 divisors (see below), whose sum is σ = 47235272. Its totient is φ = 6747888.

The previous prime is 20243659. The next prime is 20243677. The reversal of 20243676 is 67634202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243677) 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 3 ways as a sum of consecutive naturals, for example, 843475 + ... + 843498.

Almost surely, 2^20243676 is an apocalyptic number.

It is an amenable number.

20243676 is an abundant number, since it is smaller than the sum of its proper divisors (26991596).

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

20243676 is a wasteful number, since it uses less digits than its factorization.

20243676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686980 (or 1686978 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 20243676 is about 4499.2972784647. The cubic root of 20243676 is about 272.5397119691.

Adding to 20243676 its reverse (67634202), we get a palindrome (87877878).

The spelling of 20243676 in words is "twenty million, two hundred forty-three thousand, six hundred seventy-six".