203988 has 24 divisors (see below), whose sum is σ = 483840. Its totient is φ = 66880.

The previous prime is 203977. The next prime is 203989. The reversal of 203988 is 889302.

203988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×203988² = 83222208288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203989) by changing a digit.

203988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (20160).

2²⁰³⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

203988 is an abundant number, since it is smaller than the sum of its proper divisors (279852).

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

203988 is a wasteful number, since it uses less digits than its factorization.

203988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 203988 is about 451.6503072068. The cubic root of 203988 is about 58.8664988785.

The spelling of 203988 in words is "two hundred three thousand, nine hundred eighty-eight".