228145450 has 48 divisors (see below), whose sum is σ = 458705016. Its totient is φ = 83923200.

The previous prime is 228145439. The next prime is 228145451. The reversal of 228145450 is 54541822.

228145450 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 12 ways, for example, as 4313929 + 223831521 = 2077^2 + 14961^2 .

It is not an unprimeable number, because it can be changed into a prime (228145451) 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, 241980 + ... + 242920.

Almost surely, 2^228145450 is an apocalyptic number.

228145450 is an abundant number, since it is smaller than the sum of its proper divisors (230559566).

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

228145450 is a wasteful number, since it uses less digits than its factorization.

228145450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 228145450 is about 15104.4844334390. The cubic root of 228145450 is about 611.0413548172.

The spelling of 228145450 in words is "two hundred twenty-eight million, one hundred forty-five thousand, four hundred fifty".