228634144 has 48 divisors (see below), whose sum is σ = 490190400. Its totient is φ = 104557824.

The previous prime is 228634121. The next prime is 228634171. The reversal of 228634144 is 441436822.

It is a super-2 number, since 2×228634144² = 104547143605225472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11149 + ... + 24115.

It is an arithmetic number, because the mean of its divisors is an integer number (10212300).

Almost surely, 2^228634144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228634144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245095200).

228634144 is an abundant number, since it is smaller than the sum of its proper divisors (261556256).

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

228634144 is a wasteful number, since it uses less digits than its factorization.

228634144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13025 (or 13017 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 228634144 is about 15120.6528959566. The cubic root of 228634144 is about 611.4773329549.

The spelling of 228634144 in words is "two hundred twenty-eight million, six hundred thirty-four thousand, one hundred forty-four".