228970 has 16 divisors (see below), whose sum is σ = 471168. Its totient is φ = 78480.

The previous prime is 228961. The next prime is 228983. The reversal of 228970 is 79822.

228970 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566 + ... + 1705.

It is an arithmetic number, because the mean of its divisors is an integer number (29448).

2²²⁸⁹⁷⁰ is an apocalyptic number.

228970 is an abundant number, since it is smaller than the sum of its proper divisors (242198).

It is a weird number, because it is abundant, but not a pseudoperfect number.

228970 is a wasteful number, since it uses less digits than its factorization.

228970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 228970 is about 478.5080981551. The cubic root of 228970 is about 61.1776599795.

The spelling of 228970 in words is "two hundred twenty-eight thousand, nine hundred seventy".