228944219 has 12 divisors (see below), whose sum is σ = 281989944. Its totient is φ = 184693824.

The previous prime is 228944203. The next prime is 228944263. The reversal of 228944219 is 912449822.

It is not a de Polignac number, because 228944219 - 2⁴ = 228944203 is a prime.

It is a super-2 number, since 2×228944219² = 104830910827039922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228944719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136589 + ... + 138254.

It is an arithmetic number, because the mean of its divisors is an integer number (23499162).

Almost surely, 2^228944219 is an apocalyptic number.

228944219 is a deficient number, since it is larger than the sum of its proper divisors (53045725).

228944219 is a wasteful number, since it uses less digits than its factorization.

228944219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274874 (or 274867 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 228944219 is about 15130.9027820550. The cubic root of 228944219 is about 611.7536378282.

The spelling of 228944219 in words is "two hundred twenty-eight million, nine hundred forty-four thousand, two hundred nineteen".