228145678 has 32 divisors (see below), whose sum is σ = 376047360. Its totient is φ = 103342080.

The previous prime is 228145667. The next prime is 228145679. The reversal of 228145678 is 876541822.

It is a happy number.

228145678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228145679) 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, 245118 + ... + 246046.

It is an arithmetic number, because the mean of its divisors is an integer number (11751480).

Almost surely, 2^228145678 is an apocalyptic number.

228145678 is a deficient number, since it is larger than the sum of its proper divisors (147901682).

228145678 is a wasteful number, since it uses less digits than its factorization.

228145678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its digits is 215040, while the sum is 43.

The square root of 228145678 is about 15104.4919808645. The cubic root of 228145678 is about 611.0415583677.

The spelling of 228145678 in words is "two hundred twenty-eight million, one hundred forty-five thousand, six hundred seventy-eight".