20006012 has 24 divisors (see below), whose sum is σ = 39690000. Its totient is φ = 8747136.

The previous prime is 20006003. The next prime is 20006023. The reversal of 20006012 is 21060002.

It is a super-2 number, since 2×20006012² = 800481032288288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20005984 and 20006002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9137 + ... + 11112.

It is an arithmetic number, because the mean of its divisors is an integer number (1653750).

Almost surely, 2^20006012 is an apocalyptic number.

It is an amenable number.

20006012 is a deficient number, since it is larger than the sum of its proper divisors (19683988).

20006012 is a wasteful number, since it uses less digits than its factorization.

20006012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20285 (or 20283 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20006012 is about 4472.8080665282. The cubic root of 20006012 is about 271.4689573992.

Adding to 20006012 its reverse (21060002), we get a palindrome (41066014).

The spelling of 20006012 in words is "twenty million, six thousand, twelve".