228228419 has 2 divisors, whose sum is σ = 228228420. Its totient is φ = 228228418.

The previous prime is 228228397. The next prime is 228228449. The reversal of 228228419 is 914822822.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228228419 is a prime.

It is a super-2 number, since 2×228228419² = 104176422478479122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228228449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114114209 + 114114210.

It is an arithmetic number, because the mean of its divisors is an integer number (114114210).

Almost surely, 2^228228419 is an apocalyptic number.

228228419 is a deficient number, since it is larger than the sum of its proper divisors (1).

228228419 is an equidigital number, since it uses as much as digits as its factorization.

228228419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 38.

The square root of 228228419 is about 15107.2306859993. The cubic root of 228228419 is about 611.1154177242.

The spelling of 228228419 in words is "two hundred twenty-eight million, two hundred twenty-eight thousand, four hundred nineteen".