228938877900 has 396 divisors, whose sum is σ = 753283604472. Its totient is φ = 60390593280.

The previous prime is 228938877887. The next prime is 228938877901. The reversal of 228938877900 is 9778839822.

It is a happy number.

228938877900 is a `hidden beast` number, since 22 + 89 + 388 + 77 + 90 + 0 = 666.

228938877900 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 2×228938877900² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228938877901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 131 ways as a sum of consecutive naturals, for example, 808971159 + ... + 808971441.

Almost surely, 2^228938877900 is an apocalyptic number.

228938877900 is a gapful number since it is divisible by the number (20) 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 228938877900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376641802236).

228938877900 is an abundant number, since it is smaller than the sum of its proper divisors (524344726572).

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

228938877900 is a wasteful number, since it uses less digits than its factorization.

228938877900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 228938877900 in words is "two hundred twenty-eight billion, nine hundred thirty-eight million, eight hundred seventy-seven thousand, nine hundred".