20536036 has 48 divisors (see below), whose sum is σ = 39793600. Its totient is φ = 9237888.

The previous prime is 20536013. The next prime is 20536057. The reversal of 20536036 is 63063502.

It is a self number, because there is not a number n which added to its sum of digits gives 20536036.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188350 + ... + 188458.

Almost surely, 2^20536036 is an apocalyptic number.

It is an amenable number.

20536036 is a deficient number, since it is larger than the sum of its proper divisors (19257564).

20536036 is a wasteful number, since it uses less digits than its factorization.

20536036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 20536036 is about 4531.6703322285. The cubic root of 20536036 is about 273.8454560320.

Adding to 20536036 its reverse (63063502), we get a palindrome (83599538).

The spelling of 20536036 in words is "twenty million, five hundred thirty-six thousand, thirty-six".