228041280 has 84 divisors (see below), whose sum is σ = 784376892. Its totient is φ = 60810240.

The previous prime is 228041207. The next prime is 228041291. The reversal of 228041280 is 82140822.

It can be written as a sum of positive squares in 2 ways, for example, as 95883264 + 132158016 = 9792^2 + 11496^2 .

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, 36711 + ... + 42470.

Almost surely, 2^228041280 is an apocalyptic number.

228041280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228041280 is an abundant number, since it is smaller than the sum of its proper divisors (556335612).

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

228041280 is a wasteful number, since it uses less digits than its factorization.

228041280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79204 (or 79191 counting only the distinct ones).

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

The square root of 228041280 is about 15101.0357260686. The cubic root of 228041280 is about 610.9483412475.

The spelling of 228041280 in words is "two hundred twenty-eight million, forty-one thousand, two hundred eighty".