143628228 has 60 divisors (see below), whose sum is σ = 385652652. Its totient is φ = 46578240.

The previous prime is 143628217. The next prime is 143628253. The reversal of 143628228 is 822826341.

143628228 is a `hidden beast` number, since 1 + 4 + 3 + 628 + 2 + 28 = 666.

143628228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 134374464 + 9253764 = 11592^2 + 3042^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 143628192 and 143628201.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5998 + ... + 17978.

Almost surely, 2^143628228 is an apocalyptic number.

143628228 is a gapful number since it is divisible by the number (18) 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 143628228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192826326).

143628228 is an abundant number, since it is smaller than the sum of its proper divisors (242024424).

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

143628228 is a wasteful number, since it uses less digits than its factorization.

143628228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12034 (or 12023 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 143628228 is about 11984.4994889232. The cubic root of 143628228 is about 523.6968168249.

The spelling of 143628228 in words is "one hundred forty-three million, six hundred twenty-eight thousand, two hundred twenty-eight".