199038 has 24 divisors (see below), whose sum is σ = 463752. Its totient is φ = 56784.

The previous prime is 199037. The next prime is 199039. The reversal of 199038 is 830991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (199037) and next prime (199039).

It is a super-2 number, since 2×199038² = 79232250888, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 198996 and 199014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45 + ... + 632.

It is an arithmetic number, because the mean of its divisors is an integer number (19323).

2¹⁹⁹⁰³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231876).

199038 is an abundant number, since it is smaller than the sum of its proper divisors (264714).

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

199038 is a wasteful number, since it uses less digits than its factorization.

199038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 199038 is about 446.1367503356. The cubic root of 199038 is about 58.3864405250.

The spelling of 199038 in words is "one hundred ninety-nine thousand, thirty-eight".