20653196 has 12 divisors (see below), whose sum is σ = 36206352. Its totient is φ = 10308528.

The previous prime is 20653189. The next prime is 20653229. The reversal of 20653196 is 69135602.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 1760 + ... + 6663.

It is an arithmetic number, because the mean of its divisors is an integer number (3017196).

Almost surely, 2^20653196 is an apocalyptic number.

It is an amenable number.

20653196 is a deficient number, since it is larger than the sum of its proper divisors (15553156).

20653196 is a wasteful number, since it uses less digits than its factorization.

20653196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040 (or 9038 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 20653196 is about 4544.5787483550. The cubic root of 20653196 is about 274.3652400954.

Adding to 20653196 its reverse (69135602), we get a palindrome (89788798).

The spelling of 20653196 in words is "twenty million, six hundred fifty-three thousand, one hundred ninety-six".