20334156 has 12 divisors (see below), whose sum is σ = 47446392. Its totient is φ = 6778048.

The previous prime is 20334151. The next prime is 20334163. The reversal of 20334156 is 65143302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20334151) by changing a digit.

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, 847245 + ... + 847268.

It is an arithmetic number, because the mean of its divisors is an integer number (3953866).

Almost surely, 2^20334156 is an apocalyptic number.

It is an amenable number.

20334156 is an abundant number, since it is smaller than the sum of its proper divisors (27112236).

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

20334156 is a wasteful number, since it uses less digits than its factorization.

20334156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694520 (or 1694518 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20334156 is about 4509.3409718051. The cubic root of 20334156 is about 272.9451512668.

Adding to 20334156 its reverse (65143302), we get a palindrome (85477458).

The spelling of 20334156 in words is "twenty million, three hundred thirty-four thousand, one hundred fifty-six".