228144530 has 8 divisors (see below), whose sum is σ = 410660172. Its totient is φ = 91257808.

The previous prime is 228144529. The next prime is 228144559. The reversal of 228144530 is 35441822.

It is a happy number.

228144530 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 228040201 + 104329 = 15101^2 + 323^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 228144493 and 228144502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11407217 + ... + 11407236.

Almost surely, 2^228144530 is an apocalyptic number.

228144530 is a deficient number, since it is larger than the sum of its proper divisors (182515642).

228144530 is a wasteful number, since it uses less digits than its factorization.

228144530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22814460.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 228144530 is about 15104.4539788766. The cubic root of 228144530 is about 611.0405334715.

The spelling of 228144530 in words is "two hundred twenty-eight million, one hundred forty-four thousand, five hundred thirty".