203928 has 32 divisors (see below), whose sum is σ = 529200. Its totient is φ = 65408.

The previous prime is 203921. The next prime is 203947. The reversal of 203928 is 829302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 203898 and 203907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550 + ... + 842.

2²⁰³⁹²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264600).

203928 is an abundant number, since it is smaller than the sum of its proper divisors (325272).

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

203928 is a wasteful number, since it uses less digits than its factorization.

203928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 203928 is about 451.5838792517. The cubic root of 203928 is about 58.8607267476.

The spelling of 203928 in words is "two hundred three thousand, nine hundred twenty-eight".