228217300 has 18 divisors (see below), whose sum is σ = 495231758. Its totient is φ = 91286880.

The previous prime is 228217273. The next prime is 228217309. The reversal of 228217300 is 3712822.

228217300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 42876304 + 185340996 = 6548^2 + 13614^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228217309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1140987 + ... + 1141186.

Almost surely, 2^228217300 is an apocalyptic number.

228217300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228217300 is an abundant number, since it is smaller than the sum of its proper divisors (267014458).

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

228217300 is a wasteful number, since it uses less digits than its factorization.

228217300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282187 (or 2282180 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 228217300 is about 15106.8626789284. The cubic root of 228217300 is about 611.1054933062.

The spelling of 228217300 in words is "two hundred twenty-eight million, two hundred seventeen thousand, three hundred".