20083312 has 20 divisors (see below), whose sum is σ = 40254120. Its totient is φ = 9695168.

The previous prime is 20083309. The next prime is 20083333. The reversal of 20083312 is 21338002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20083312.

It is a congruent 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, 21178 + ... + 22105.

It is an arithmetic number, because the mean of its divisors is an integer number (2012706).

Almost surely, 2^20083312 is an apocalyptic number.

It is an amenable number.

20083312 is an abundant number, since it is smaller than the sum of its proper divisors (20170808).

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

20083312 is a wasteful number, since it uses less digits than its factorization.

20083312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43320 (or 43314 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20083312 is about 4481.4408397300. The cubic root of 20083312 is about 271.8181454549.

The spelling of 20083312 in words is "twenty million, eighty-three thousand, three hundred twelve".