20183996 has 12 divisors (see below), whose sum is σ = 40368048. Its totient is φ = 8650272.

The previous prime is 20183957. The next prime is 20184011. The reversal of 20183996 is 69938102.

20183996 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360401 + ... + 360456.

It is an arithmetic number, because the mean of its divisors is an integer number (3364004).

Almost surely, 2^20183996 is an apocalyptic number.

It is an amenable number.

20183996 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20183996 is a wasteful number, since it uses less digits than its factorization.

20183996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720868 (or 720866 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 20183996 is about 4492.6602364301. The cubic root of 20183996 is about 272.2716252849.

The spelling of 20183996 in words is "twenty million, one hundred eighty-three thousand, nine hundred ninety-six".