20093236 has 6 divisors (see below), whose sum is σ = 35163170. Its totient is φ = 10046616.

The previous prime is 20093231. The next prime is 20093251. The reversal of 20093236 is 63239002.

It can be written as a sum of positive squares in only one way, i.e., 15444900 + 4648336 = 3930^2 + 2156^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20093236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20093231) 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 as a sum of consecutive naturals, namely, 2511651 + ... + 2511658.

Almost surely, 2^20093236 is an apocalyptic number.

It is an amenable number.

20093236 is a deficient number, since it is larger than the sum of its proper divisors (15069934).

20093236 is a wasteful number, since it uses less digits than its factorization.

20093236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023313 (or 5023311 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 20093236 is about 4482.5479361631. The cubic root of 20093236 is about 271.8629103005.

The spelling of 20093236 in words is "twenty million, ninety-three thousand, two hundred thirty-six".