199307942 has 8 divisors (see below), whose sum is σ = 299023032. Its totient is φ = 99633600.

The previous prime is 199307921. The next prime is 199307947. The reversal of 199307942 is 249703991.

199307942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 199307893 and 199307902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199307947) 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, 10217 + ... + 22427.

It is an arithmetic number, because the mean of its divisors is an integer number (37377879).

Almost surely, 2^199307942 is an apocalyptic number.

199307942 is a deficient number, since it is larger than the sum of its proper divisors (99715090).

199307942 is a wasteful number, since it uses less digits than its factorization.

199307942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20374.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 199307942 is about 14117.6464752451. The cubic root of 199307942 is about 584.1282381644.

It can be divided in two parts, 19930 and 7942, that added together give a palindrome (27872).

The spelling of 199307942 in words is "one hundred ninety-nine million, three hundred seven thousand, nine hundred forty-two".