193838042 has 8 divisors (see below), whose sum is σ = 298615476. Its totient is φ = 94299552.

The previous prime is 193838041. The next prime is 193838077. The reversal of 193838042 is 240838391.

It can be written as a sum of positive squares in 2 ways, for example, as 189090001 + 4748041 = 13751^2 + 2179^2 .

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 = 193837987 and 193838005.

It is not an unprimeable number, because it can be changed into a prime (193838041) 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, 1309643 + ... + 1309790.

Almost surely, 2^193838042 is an apocalyptic number.

193838042 is a deficient number, since it is larger than the sum of its proper divisors (104777434).

193838042 is a wasteful number, since it uses less digits than its factorization.

193838042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619472.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 193838042 is about 13922.5731098817. The cubic root of 193838042 is about 578.7348981220.

The spelling of 193838042 in words is "one hundred ninety-three million, eight hundred thirty-eight thousand, forty-two".