20201036 has 12 divisors (see below), whose sum is σ = 35879928. Its totient is φ = 9949632.

The previous prime is 20201029. The next prime is 20201039. The reversal of 20201036 is 63010202.

It is a self number, because there is not a number n which added to its sum of digits gives 20201036.

It is not an unprimeable number, because it can be changed into a prime (20201039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37421 + ... + 37956.

It is an arithmetic number, because the mean of its divisors is an integer number (2989994).

Almost surely, 2^20201036 is an apocalyptic number.

It is an amenable number.

20201036 is a deficient number, since it is larger than the sum of its proper divisors (15678892).

20201036 is a wasteful number, since it uses less digits than its factorization.

20201036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75448 (or 75446 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20201036 is about 4494.5562628584. The cubic root of 20201036 is about 272.3482239838.

Adding to 20201036 its reverse (63010202), we get a palindrome (83211238).

The spelling of 20201036 in words is "twenty million, two hundred one thousand, thirty-six".