20010936 has 64 divisors (see below), whose sum is σ = 54979200. Its totient is φ = 6019200.

The previous prime is 20010929. The next prime is 20010941. The reversal of 20010936 is 63901002.

It is a congruent number.

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, 60291 + ... + 60621.

It is an arithmetic number, because the mean of its divisors is an integer number (859050).

Almost surely, 2^20010936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27489600).

20010936 is an abundant number, since it is smaller than the sum of its proper divisors (34968264).

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

20010936 is a wasteful number, since it uses less digits than its factorization.

20010936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 20010936 is about 4473.3584698747. The cubic root of 20010936 is about 271.4912274297.

Adding to 20010936 its reverse (63901002), we get a palindrome (83911938).

The spelling of 20010936 in words is "twenty million, ten thousand, nine hundred thirty-six".