199288 has 16 divisors (see below), whose sum is σ = 387000. Its totient is φ = 96096.
The previous prime is 199267. The next prime is 199289. The reversal of 199288 is 882991.
It is a nialpdrome in base 9.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (199289) by changing a digit.
199288 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 in 3 ways as a sum of consecutive naturals, for example, 198 + ... + 661.
2199288 is an apocalyptic number.
It is an amenable number.
199288 is a deficient number, since it is larger than the sum of its proper divisors (187712).
199288 is a wasteful number, since it uses less digits than its factorization.
199288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 894 (or 890 counting only the distinct ones).
The product of its digits is 10368, while the sum is 37.
The square root of 199288 is about 446.4168455603. The cubic root of 199288 is about 58.4108755626.
It can be divided in two parts, 1992 and 88, that added together give a triangular number (2080 = T64).
The spelling of 199288 in words is "one hundred ninety-nine thousand, two hundred eighty-eight".
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