19350228 has 24 divisors (see below), whose sum is σ = 45509632. Its totient is φ = 6398784.

The previous prime is 19350209. The next prime is 19350251. The reversal of 19350228 is 82205391.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19350195 and 19350204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4825 + ... + 7872.

Almost surely, 2^19350228 is an apocalyptic number.

It is an amenable number.

19350228 is an abundant number, since it is smaller than the sum of its proper divisors (26159404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19350228 is a wasteful number, since it uses less digits than its factorization.

19350228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831 (or 12829 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 19350228 is about 4398.8894052931. The cubic root of 19350228 is about 268.4697523569.

The spelling of 19350228 in words is "nineteen million, three hundred fifty thousand, two hundred twenty-eight".