228120282 has 24 divisors (see below), whose sum is σ = 532281204. Its totient is φ = 70190784.

The previous prime is 228120257. The next prime is 228120301. The reversal of 228120282 is 282021822.

It can be written as a sum of positive squares in 2 ways, for example, as 166952241 + 61168041 = 12921^2 + 7821^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 487203 + ... + 487670.

Almost surely, 2^228120282 is an apocalyptic number.

228120282 is an abundant number, since it is smaller than the sum of its proper divisors (304160922).

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

228120282 is a wasteful number, since it uses less digits than its factorization.

228120282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974894 (or 974891 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 228120282 is about 15103.6512804024. The cubic root of 228120282 is about 611.0188848616.

The spelling of 228120282 in words is "two hundred twenty-eight million, one hundred twenty thousand, two hundred eighty-two".