228770 has 8 divisors (see below), whose sum is σ = 411804. Its totient is φ = 91504.

The previous prime is 228757. The next prime is 228773. The reversal of 228770 is 77822.

228770 = T₃₀₀ + T₃₀₁ + ... + T₃₀₄.

It can be written as a sum of positive squares in 2 ways, for example, as 223729 + 5041 = 473^2 + 71^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228770.

It is not an unprimeable number, because it can be changed into a prime (228773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11429 + ... + 11448.

2²²⁸⁷⁷⁰ is an apocalyptic number.

228770 is a deficient number, since it is larger than the sum of its proper divisors (183034).

228770 is a wasteful number, since it uses less digits than its factorization.

228770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22884.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 228770 is about 478.2990696207. The cubic root of 228770 is about 61.1598423670.

The spelling of 228770 in words is "two hundred twenty-eight thousand, seven hundred seventy".