203156928 has 126 divisors (see below), whose sum is σ = 630853704. Its totient is φ = 62479872.

The previous prime is 203156917. The next prime is 203156929. The reversal of 203156928 is 829651302.

203156928 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 203156892 and 203156901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203156929) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96301 + ... + 98387.

Almost surely, 2^203156928 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 203156928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315426852).

203156928 is an abundant number, since it is smaller than the sum of its proper divisors (427696776).

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

203156928 is a wasteful number, since it uses less digits than its factorization.

203156928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131 (or 2105 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 203156928 is about 14253.3128780645. The cubic root of 203156928 is about 587.8644696659.

The spelling of 203156928 in words is "two hundred three million, one hundred fifty-six thousand, nine hundred twenty-eight".