199272838 has 8 divisors (see below), whose sum is σ = 298976832. Its totient is φ = 99613896.

The previous prime is 199272803. The next prime is 199272859. The reversal of 199272838 is 838272991.

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 = 199272791 and 199272800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3856 + ... + 20332.

It is an arithmetic number, because the mean of its divisors is an integer number (37372104).

Almost surely, 2^199272838 is an apocalyptic number.

199272838 is a deficient number, since it is larger than the sum of its proper divisors (99703994).

199272838 is a wasteful number, since it uses less digits than its factorization.

199272838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22526.

The product of its digits is 435456, while the sum is 49.

The square root of 199272838 is about 14116.4031537782. The cubic root of 199272838 is about 584.0939420873.

The spelling of 199272838 in words is "one hundred ninety-nine million, two hundred seventy-two thousand, eight hundred thirty-eight".