19838228 has 12 divisors (see below), whose sum is σ = 35042112. Its totient is φ = 9826200.

The previous prime is 19838209. The next prime is 19838257. The reversal of 19838228 is 82283891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22748 + ... + 23603.

It is an arithmetic number, because the mean of its divisors is an integer number (2920176).

Almost surely, 2^19838228 is an apocalyptic number.

It is an amenable number.

19838228 is a deficient number, since it is larger than the sum of its proper divisors (15203884).

19838228 is a wasteful number, since it uses less digits than its factorization.

19838228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46462 (or 46460 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 19838228 is about 4454.0125729504. The cubic root of 19838228 is about 270.7079182221.

The spelling of 19838228 in words is "nineteen million, eight hundred thirty-eight thousand, two hundred twenty-eight".