199271742 has 8 divisors (see below), whose sum is σ = 398543496. Its totient is φ = 66423912.

The previous prime is 199271741. The next prime is 199271749. The reversal of 199271742 is 247172991.

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

199271742 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 199271694 and 199271703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199271741) 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, 16605973 + ... + 16605984.

It is an arithmetic number, because the mean of its divisors is an integer number (49817937).

Almost surely, 2^199271742 is an apocalyptic number.

199271742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

199271742 is a wasteful number, since it uses less digits than its factorization.

199271742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33211962.

The product of its digits is 63504, while the sum is 42.

The square root of 199271742 is about 14116.3643336378. The cubic root of 199271742 is about 584.0928712470.

The spelling of 199271742 in words is "one hundred ninety-nine million, two hundred seventy-one thousand, seven hundred forty-two".