20735196 has 24 divisors (see below), whose sum is σ = 49203840. Its totient is φ = 6794352.

The previous prime is 20735191. The next prime is 20735201. The reversal of 20735196 is 69153702.

It is an interprime number because it is at equal distance from previous prime (20735191) and next prime (20735201).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20735191) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13936 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (2050160).

Almost surely, 2^20735196 is an apocalyptic number.

It is an amenable number.

20735196 is an abundant number, since it is smaller than the sum of its proper divisors (28468644).

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

20735196 is a wasteful number, since it uses less digits than its factorization.

20735196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29353 (or 29351 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 20735196 is about 4553.5915495354. The cubic root of 20735196 is about 274.7278674329.

Adding to 20735196 its reverse (69153702), we get a palindrome (89888898).

The spelling of 20735196 in words is "twenty million, seven hundred thirty-five thousand, one hundred ninety-six".