228144258 has 48 divisors (see below), whose sum is σ = 506862720. Its totient is φ = 74142432.

The previous prime is 228144173. The next prime is 228144281. The reversal of 228144258 is 852441822.

228144258 is a `hidden beast` number, since 228 + 1 + 4 + 425 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117060 + ... + 118992.

It is an arithmetic number, because the mean of its divisors is an integer number (10559640).

Almost surely, 2^228144258 is an apocalyptic number.

228144258 is an abundant number, since it is smaller than the sum of its proper divisors (278718462).

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

228144258 is a wasteful number, since it uses less digits than its factorization.

228144258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2100 counting only the distinct ones).

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

The square root of 228144258 is about 15104.4449749072. Note that the first 3 decimals coincide. The cubic root of 228144258 is about 611.0402906385.

It can be divided in two parts, 22814 and 4258, that added together give a palindrome (27072).

The spelling of 228144258 in words is "two hundred twenty-eight million, one hundred forty-four thousand, two hundred fifty-eight".