20036604 has 24 divisors (see below), whose sum is σ = 53431168. Its totient is φ = 5724720.

The previous prime is 20036603. The next prime is 20036629. The reversal of 20036604 is 40663002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20036603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119182 + ... + 119349.

Almost surely, 2^20036604 is an apocalyptic number.

It is an amenable number.

20036604 is an abundant number, since it is smaller than the sum of its proper divisors (33394564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20036604 is a wasteful number, since it uses less digits than its factorization.

20036604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238545 (or 238543 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20036604 is about 4476.2265358223. The cubic root of 20036604 is about 271.6072583073.

Adding to 20036604 its reverse (40663002), we get a palindrome (60699606).

The spelling of 20036604 in words is "twenty million, thirty-six thousand, six hundred four".