203900286228 has 384 divisors, whose sum is σ = 578285568000. Its totient is φ = 55399956480.

The previous prime is 203900286221. The next prime is 203900286229. The reversal of 203900286228 is 822682009302.

It is a self number, because there is not a number n which added to its sum of digits gives 203900286228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203900286221) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 245958918 + ... + 245959746.

It is an arithmetic number, because the mean of its divisors is an integer number (1505952000).

Almost surely, 2^203900286228 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 203900286228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289142784000).

203900286228 is an abundant number, since it is smaller than the sum of its proper divisors (374385281772).

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

203900286228 is a wasteful number, since it uses less digits than its factorization.

203900286228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 203900286228 in words is "two hundred three billion, nine hundred million, two hundred eighty-six thousand, two hundred twenty-eight".