199450 has 12 divisors (see below), whose sum is σ = 371070. Its totient is φ = 79760.

The previous prime is 199447. The next prime is 199453. The reversal of 199450 is 54991.

It is an interprime number because it is at equal distance from previous prime (199447) and next prime (199453).

It can be written as a sum of positive squares in 3 ways, for example, as 145161 + 54289 = 381^2 + 233^2 .

It is not an unprimeable number, because it can be changed into a prime (199453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1945 + ... + 2044.

2¹⁹⁹⁴⁵⁰ is an apocalyptic number.

199450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199450 is a deficient number, since it is larger than the sum of its proper divisors (171620).

199450 is a wasteful number, since it uses less digits than its factorization.

199450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001 (or 3996 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 199450 is about 446.5982534673. The cubic root of 199450 is about 58.4266985574.

The spelling of 199450 in words is "one hundred ninety-nine thousand, four hundred fifty".