228145056 has 48 divisors (see below), whose sum is σ = 601622784. Its totient is φ = 75700224.

The previous prime is 228145051. The next prime is 228145061. The reversal of 228145056 is 650541822.

228145056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228145051) and next prime (228145061).

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (228145051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16080 + ... + 26736.

It is an arithmetic number, because the mean of its divisors is an integer number (12533808).

Almost surely, 2^228145056 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 228145056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300811392).

228145056 is an abundant number, since it is smaller than the sum of its proper divisors (373477728).

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

228145056 is a wasteful number, since it uses less digits than its factorization.

228145056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10893 (or 10885 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 228145056 is about 15104.4713909491. The cubic root of 228145056 is about 611.0410030672.

Adding to 228145056 its reverse (650541822), we get a palindrome (878686878).

The spelling of 228145056 in words is "two hundred twenty-eight million, one hundred forty-five thousand, fifty-six".