228570 has 32 divisors (see below), whose sum is σ = 578880. Its totient is φ = 57600.

The previous prime is 228559. The next prime is 228577. The reversal of 228570 is 75822.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 2 and 28570 contains 228570 itself.

It is a self number, because there is not a number n which added to its sum of digits gives 228570.

It is not an unprimeable number, because it can be changed into a prime (228577) 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, 370 + ... + 770.

It is an arithmetic number, because the mean of its divisors is an integer number (18090).

2²²⁸⁵⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289440).

228570 is an abundant number, since it is smaller than the sum of its proper divisors (350310).

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

228570 is a wasteful number, since it uses less digits than its factorization.

228570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 228570 is about 478.0899496957. The cubic root of 228570 is about 61.1420143668.

The spelling of 228570 in words is "two hundred twenty-eight thousand, five hundred seventy".