20327236 has 12 divisors (see below), whose sum is σ = 35646912. Its totient is φ = 10142408.

The previous prime is 20327233. The next prime is 20327243. The reversal of 20327236 is 63272302.

It is a self number, because there is not a number n which added to its sum of digits gives 20327236.

It is not an unprimeable number, because it can be changed into a prime (20327233) by changing a digit.

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, 3040 + ... + 7063.

It is an arithmetic number, because the mean of its divisors is an integer number (2970576).

Almost surely, 2^20327236 is an apocalyptic number.

It is an amenable number.

20327236 is a deficient number, since it is larger than the sum of its proper divisors (15319676).

20327236 is a wasteful number, since it uses less digits than its factorization.

20327236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10610 (or 10608 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 20327236 is about 4508.5736103562. The cubic root of 20327236 is about 272.9141853927.

Adding to 20327236 its reverse (63272302), we get a palindrome (83599538).

The spelling of 20327236 in words is "twenty million, three hundred twenty-seven thousand, two hundred thirty-six".