199630 has 8 divisors (see below), whose sum is σ = 359352. Its totient is φ = 79848.

The previous prime is 199621. The next prime is 199637. The reversal of 199630 is 36991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9972 + ... + 9991.

It is an arithmetic number, because the mean of its divisors is an integer number (44919).

2¹⁹⁹⁶³⁰ is an apocalyptic number.

199630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199630 is a deficient number, since it is larger than the sum of its proper divisors (159722).

199630 is a wasteful number, since it uses less digits than its factorization.

199630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19970.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 199630 is about 446.7997314234. The cubic root of 199630 is about 58.4442696172. Note that the first 3 decimals are identical.

The spelling of 199630 in words is "one hundred ninety-nine thousand, six hundred thirty".