19000228 has 24 divisors (see below), whose sum is σ = 37694720. Its totient is φ = 8307360.

The previous prime is 19000213. The next prime is 19000229. The reversal of 19000228 is 82200091.

It is a super-2 number, since 2×19000228² = 722017328103968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19000199 and 19000208.

It is not an unprimeable number, because it can be changed into a prime (19000229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8628 + ... + 10603.

Almost surely, 2^19000228 is an apocalyptic number.

It is an amenable number.

19000228 is a deficient number, since it is larger than the sum of its proper divisors (18694492).

19000228 is a wasteful number, since it uses less digits than its factorization.

19000228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19267 (or 19265 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 19000228 is about 4358.9250968559. The cubic root of 19000228 is about 266.8412322286.

The spelling of 19000228 in words is "nineteen million, two hundred twenty-eight", and thus it is an aban number.