20002036 has 12 divisors (see below), whose sum is σ = 35150500. Its totient is φ = 9959040.

The previous prime is 20002027. The next prime is 20002061. The reversal of 20002036 is 63020002.

It can be written as a sum of positive squares in 2 ways, for example, as 6533136 + 13468900 = 2556^2 + 3670^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9411 + ... + 11338.

Almost surely, 2^20002036 is an apocalyptic number.

It is an amenable number.

20002036 is a deficient number, since it is larger than the sum of its proper divisors (15148464).

20002036 is a wasteful number, since it uses less digits than its factorization.

20002036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20994 (or 20992 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20002036 is about 4472.3635809268. The cubic root of 20002036 is about 271.4509722707.

Adding to 20002036 its reverse (63020002), we get a palindrome (83022038).

The spelling of 20002036 in words is "twenty million, two thousand, thirty-six".