228167520 has 288 divisors, whose sum is σ = 853221600. Its totient is φ = 51093504.

The previous prime is 228167519. The next prime is 228167543. The reversal of 228167520 is 25761822.

228167520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2093226 + ... + 2093334.

It is an arithmetic number, because the mean of its divisors is an integer number (2962575).

Almost surely, 2^228167520 is an apocalyptic number.

228167520 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 228167520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426610800).

228167520 is an abundant number, since it is smaller than the sum of its proper divisors (625054080).

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

228167520 is a wasteful number, since it uses less digits than its factorization.

228167520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 228167520 is about 15105.2149935047. The cubic root of 228167520 is about 611.0610575227.

The spelling of 228167520 in words is "two hundred twenty-eight million, one hundred sixty-seven thousand, five hundred twenty".