228776522 has 8 divisors (see below), whose sum is σ = 369562116. Its totient is φ = 105589152.

The previous prime is 228776521. The next prime is 228776543. The reversal of 228776522 is 225677822.

It is a happy number.

228776522 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 2 ways, for example, as 159037321 + 69739201 = 12611^2 + 8351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 228776522.

It is not an unprimeable number, because it can be changed into a prime (228776521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4399523 + ... + 4399574.

Almost surely, 2^228776522 is an apocalyptic number.

228776522 is a deficient number, since it is larger than the sum of its proper divisors (140785594).

228776522 is a wasteful number, since it uses less digits than its factorization.

228776522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799112.

The product of its digits is 188160, while the sum is 41.

The square root of 228776522 is about 15125.3602271153. The cubic root of 228776522 is about 611.6042356308.

The spelling of 228776522 in words is "two hundred twenty-eight million, seven hundred seventy-six thousand, five hundred twenty-two".