228143832 has 64 divisors (see below), whose sum is σ = 653702400. Its totient is φ = 64997760.

The previous prime is 228143827. The next prime is 228143833. The reversal of 228143832 is 238341822.

228143832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 228143793 and 228143802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228143833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63607 + ... + 67097.

It is an arithmetic number, because the mean of its divisors is an integer number (10214100).

Almost surely, 2^228143832 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 228143832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326851200).

228143832 is an abundant number, since it is smaller than the sum of its proper divisors (425558568).

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

228143832 is a wasteful number, since it uses less digits than its factorization.

228143832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896 (or 3892 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 228143832 is about 15104.4308730915. The cubic root of 228143832 is about 611.0399103187.

The spelling of 228143832 in words is "two hundred twenty-eight million, one hundred forty-three thousand, eight hundred thirty-two".