228910 has 16 divisors (see below), whose sum is σ = 449712. Its totient is φ = 83200.

The previous prime is 228901. The next prime is 228911. The reversal of 228910 is 19822.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228911) by changing a digit.

228910 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931 + ... + 1150.

It is an arithmetic number, because the mean of its divisors is an integer number (28107).

2²²⁸⁹¹⁰ is an apocalyptic number.

228910 is a deficient number, since it is larger than the sum of its proper divisors (220802).

228910 is a wasteful number, since it uses less digits than its factorization.

228910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 228910 is about 478.4453991836. The cubic root of 228910 is about 61.1723157855.

The spelling of 228910 in words is "two hundred twenty-eight thousand, nine hundred ten".