228481845 has 16 divisors (see below), whose sum is σ = 375452160. Its totient is φ = 118563264.

The previous prime is 228481831. The next prime is 228481867. The reversal of 228481845 is 548184822.

It is not a de Polignac number, because 228481845 - 2⁴ = 228481829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228481797 and 228481806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205285 + ... + 206394.

It is an arithmetic number, because the mean of its divisors is an integer number (23465760).

Almost surely, 2^228481845 is an apocalyptic number.

It is an amenable number.

228481845 is a deficient number, since it is larger than the sum of its proper divisors (146970315).

228481845 is a wasteful number, since it uses less digits than its factorization.

228481845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411724.

The product of its digits is 163840, while the sum is 42.

The square root of 228481845 is about 15115.6159318765. The cubic root of 228481845 is about 611.3415292781.

The spelling of 228481845 in words is "two hundred twenty-eight million, four hundred eighty-one thousand, eight hundred forty-five".