228038 has 16 divisors (see below), whose sum is σ = 382320. Its totient is φ = 101376.

The previous prime is 228023. The next prime is 228049. The reversal of 228038 is 830822.

It is a congruent number.

It is an unprimeable number.

228038 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 470 + ... + 822.

It is an arithmetic number, because the mean of its divisors is an integer number (23895).

2²²⁸⁰³⁸ is an apocalyptic number.

228038 is a deficient number, since it is larger than the sum of its proper divisors (154282).

228038 is a wasteful number, since it uses less digits than its factorization.

228038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 228038 is about 477.5332449160. The cubic root of 228038 is about 61.0945412070.

The spelling of 228038 in words is "two hundred twenty-eight thousand, thirty-eight".