228419 has 2 divisors, whose sum is σ = 228420. Its totient is φ = 228418.

The previous prime is 228409. The next prime is 228421. The reversal of 228419 is 914822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228419 is a prime.

It is a super-2 number, since 2×228419² = 104350479122, which contains 22 as substring.

Together with 228421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228409) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114209 + 114210.

It is an arithmetic number, because the mean of its divisors is an integer number (114210).

2²²⁸⁴¹⁹ is an apocalyptic number.

228419 is a deficient number, since it is larger than the sum of its proper divisors (1).

228419 is an equidigital number, since it uses as much as digits as its factorization.

228419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

The square root of 228419 is about 477.9320035319. The cubic root of 228419 is about 61.1285473356.

The spelling of 228419 in words is "two hundred twenty-eight thousand, four hundred nineteen".