203550228 has 72 divisors (see below), whose sum is σ = 591252480. Its totient is φ = 57839040.

The previous prime is 203550227. The next prime is 203550233. The reversal of 203550228 is 822055302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203550227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46018 + ... + 50246.

It is an arithmetic number, because the mean of its divisors is an integer number (8211840).

Almost surely, 2^203550228 is an apocalyptic number.

203550228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203550228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295626240).

203550228 is an abundant number, since it is smaller than the sum of its proper divisors (387702252).

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

203550228 is a wasteful number, since it uses less digits than its factorization.

203550228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437 (or 4432 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 203550228 is about 14267.1029995581. The cubic root of 203550228 is about 588.2435822683.

The spelling of 203550228 in words is "two hundred three million, five hundred fifty thousand, two hundred twenty-eight".