228440160 has 144 divisors (see below), whose sum is σ = 839586384. Its totient is φ = 56226816.

The previous prime is 228440159. The next prime is 228440161. The reversal of 228440160 is 61044822.

228440160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228440159) and next prime (228440161).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228440161) 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, 12619 + ... + 24821.

It is an arithmetic number, because the mean of its divisors is an integer number (5830461).

Almost surely, 2^228440160 is an apocalyptic number.

228440160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228440160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419793192).

228440160 is an abundant number, since it is smaller than the sum of its proper divisors (611146224).

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

228440160 is a wasteful number, since it uses less digits than its factorization.

228440160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12237 (or 12226 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 228440160 is about 15114.2369969509. The cubic root of 228440160 is about 611.3043486120.

Adding to 228440160 its reverse (61044822), we get a palindrome (289484982).

The spelling of 228440160 in words is "two hundred twenty-eight million, four hundred forty thousand, one hundred sixty".