228124845 has 24 divisors (see below), whose sum is σ = 425834136. Its totient is φ = 112307328.

The previous prime is 228124843. The next prime is 228124859. The reversal of 228124845 is 548421822.

It can be written as a sum of positive squares in 4 ways, for example, as 13883076 + 214241769 = 3726^2 + 14637^2 .

It is not a de Polignac number, because 228124845 - 2¹ = 228124843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228124843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194394 + ... + 195563.

It is an arithmetic number, because the mean of its divisors is an integer number (17743089).

Almost surely, 2^228124845 is an apocalyptic number.

It is an amenable number.

228124845 is a deficient number, since it is larger than the sum of its proper divisors (197709291).

228124845 is a wasteful number, since it uses less digits than its factorization.

228124845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389981 (or 389978 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 228124845 is about 15103.8023358358. The cubic root of 228124845 is about 611.0229588244.

The spelling of 228124845 in words is "two hundred twenty-eight million, one hundred twenty-four thousand, eight hundred forty-five".