20653194 has 16 divisors (see below), whose sum is σ = 41405760. Its totient is φ = 6867840.

The previous prime is 20653189. The next prime is 20653229. The reversal of 20653194 is 49135602.

20653194 is nontrivially palindromic in base 12.

It is a Curzon 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, 1287 + ... + 6554.

It is an arithmetic number, because the mean of its divisors is an integer number (2587860).

Almost surely, 2^20653194 is an apocalyptic number.

20653194 is an abundant number, since it is smaller than the sum of its proper divisors (20752566).

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

20653194 is a wasteful number, since it uses less digits than its factorization.

20653194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8285.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 20653194 is about 4544.5785283126. The cubic root of 20653194 is about 274.3652312391.

Adding to 20653194 its reverse (49135602), we get a palindrome (69788796).

The spelling of 20653194 in words is "twenty million, six hundred fifty-three thousand, one hundred ninety-four".