199028 has 6 divisors (see below), whose sum is σ = 348306. Its totient is φ = 99512.

The previous prime is 199021. The next prime is 199033. The reversal of 199028 is 820991.

It can be written as a sum of positive squares in only one way, i.e., 110224 + 88804 = 332^2 + 298^2 .

It is a super-2 number, since 2×199028² = 79224289568, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 199028.

It is not an unprimeable number, because it can be changed into a prime (199021) by changing a digit.

199028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24875 + ... + 24882.

It is an arithmetic number, because the mean of its divisors is an integer number (58051).

2¹⁹⁹⁰²⁸ is an apocalyptic number.

It is an amenable number.

199028 is a deficient number, since it is larger than the sum of its proper divisors (149278).

199028 is a wasteful number, since it uses less digits than its factorization.

199028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49761 (or 49759 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 199028 is about 446.1255428688. The cubic root of 199028 is about 58.3854626980.

The spelling of 199028 in words is "one hundred ninety-nine thousand, twenty-eight".