228004919 has 2 divisors, whose sum is σ = 228004920. Its totient is φ = 228004918.

The previous prime is 228004871. The next prime is 228004939. The reversal of 228004919 is 919400822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228004919 is a prime.

It is a super-3 number, since 3×228004919³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228004939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114002459 + 114002460.

It is an arithmetic number, because the mean of its divisors is an integer number (114002460).

Almost surely, 2^228004919 is an apocalyptic number.

228004919 is a deficient number, since it is larger than the sum of its proper divisors (1).

228004919 is an equidigital number, since it uses as much as digits as its factorization.

228004919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 228004919 is about 15099.8317540296. The cubic root of 228004919 is about 610.9158677797.

The spelling of 228004919 in words is "two hundred twenty-eight million, four thousand, nine hundred nineteen".