20206036 has 6 divisors (see below), whose sum is σ = 35360570. Its totient is φ = 10103016.

The previous prime is 20206019. The next prime is 20206037. The reversal of 20206036 is 63060202.

It can be written as a sum of positive squares in only one way, i.e., 20196036 + 10000 = 4494^2 + 100^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20206037) 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, 2525751 + ... + 2525758.

Almost surely, 2^20206036 is an apocalyptic number.

It is an amenable number.

20206036 is a deficient number, since it is larger than the sum of its proper divisors (15154534).

20206036 is a wasteful number, since it uses less digits than its factorization.

20206036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051513 (or 5051511 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20206036 is about 4495.1124568803. The cubic root of 20206036 is about 272.3706919534.

Adding to 20206036 its reverse (63060202), we get a palindrome (83266238).

The spelling of 20206036 in words is "twenty million, two hundred six thousand, thirty-six".