199042 has 8 divisors (see below), whose sum is σ = 311616. Its totient is φ = 95172.

The previous prime is 199039. The next prime is 199049. The reversal of 199042 is 240991.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 198998 and 199016.

It is not an unprimeable number, because it can be changed into a prime (199049) 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, 2118 + ... + 2209.

It is an arithmetic number, because the mean of its divisors is an integer number (38952).

2¹⁹⁹⁰⁴² is an apocalyptic number.

199042 is a deficient number, since it is larger than the sum of its proper divisors (112574).

199042 is a wasteful number, since it uses less digits than its factorization.

199042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 199042 is about 446.1412332435. The cubic root of 199042 is about 58.3868316466.

The spelling of 199042 in words is "one hundred ninety-nine thousand, forty-two".