228505370 has 16 divisors (see below), whose sum is σ = 412126920. Its totient is φ = 91220544.

The previous prime is 228505369. The next prime is 228505379. The reversal of 228505370 is 73505822.

It can be written as a sum of positive squares in 4 ways, for example, as 211208089 + 17297281 = 14533^2 + 4159^2 .

It is not an unprimeable number, because it can be changed into a prime (228505379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17357 + ... + 27536.

Almost surely, 2^228505370 is an apocalyptic number.

228505370 is a deficient number, since it is larger than the sum of its proper divisors (183621550).

228505370 is a wasteful number, since it uses less digits than its factorization.

228505370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45409.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 228505370 is about 15116.3940806000. The cubic root of 228505370 is about 611.3625102535.

The spelling of 228505370 in words is "two hundred twenty-eight million, five hundred five thousand, three hundred seventy".