228013056 has 110 divisors (see below), whose sum is σ = 681139250. Its totient is φ = 75976704.

The previous prime is 228013033. The next prime is 228013069. The reversal of 228013056 is 650310822.

It can be written as a sum of positive squares in only one way, i.e., 153363456 + 74649600 = 12384^2 + 8640^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 81570 + ... + 84318.

It is an arithmetic number, because the mean of its divisors is an integer number (6192175).

Almost surely, 2^228013056 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 228013056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340569625).

228013056 is an abundant number, since it is smaller than the sum of its proper divisors (453126194).

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

228013056 is an equidigital number, since it uses as much as digits as its factorization.

228013056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 228013056 is about 15100.1011917139. The cubic root of 228013056 is about 610.9231351131.

Adding to 228013056 its reverse (650310822), we get a palindrome (878323878).

The spelling of 228013056 in words is "two hundred twenty-eight million, thirteen thousand, fifty-six".