20119812 has 12 divisors (see below), whose sum is σ = 46946256. Its totient is φ = 6706600.

The previous prime is 20119793. The next prime is 20119819. The reversal of 20119812 is 21891102.

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 (20119819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838314 + ... + 838337.

It is an arithmetic number, because the mean of its divisors is an integer number (3912188).

Almost surely, 2^20119812 is an apocalyptic number.

It is an amenable number.

20119812 is an abundant number, since it is smaller than the sum of its proper divisors (26826444).

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

20119812 is a wasteful number, since it uses less digits than its factorization.

20119812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676658 (or 1676656 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 20119812 is about 4485.5113420880. The cubic root of 20119812 is about 271.9827158856.

The spelling of 20119812 in words is "twenty million, one hundred nineteen thousand, eight hundred twelve".