20632012 has 12 divisors (see below), whose sum is σ = 37676016. Its totient is φ = 9867440.

The previous prime is 20631991. The next prime is 20632037. The reversal of 20632012 is 21023602.

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 3 ways as a sum of consecutive naturals, for example, 112039 + ... + 112222.

It is an arithmetic number, because the mean of its divisors is an integer number (3139668).

Almost surely, 2^20632012 is an apocalyptic number.

It is an amenable number.

20632012 is a deficient number, since it is larger than the sum of its proper divisors (17044004).

20632012 is a wasteful number, since it uses less digits than its factorization.

20632012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224288 (or 224286 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20632012 is about 4542.2474613345. The cubic root of 20632012 is about 274.2714024547.

Adding to 20632012 its reverse (21023602), we get a palindrome (41655614).

The spelling of 20632012 in words is "twenty million, six hundred thirty-two thousand, twelve".