199408 has 30 divisors (see below), whose sum is σ = 428792. Its totient is φ = 89760.

The previous prime is 199403. The next prime is 199411. The reversal of 199408 is 804991.

It is a self number, because there is not a number n which added to its sum of digits gives 199408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199403) 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, 1885 + ... + 1987.

2¹⁹⁹⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214396).

199408 is an abundant number, since it is smaller than the sum of its proper divisors (229384).

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

199408 is a wasteful number, since it uses less digits than its factorization.

199408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 199408 is about 446.5512288641. The cubic root of 199408 is about 58.4225971225.

The spelling of 199408 in words is "one hundred ninety-nine thousand, four hundred eight".