199448711 has 16 divisors (see below), whose sum is σ = 252745728. Its totient is φ = 152863200.

The previous prime is 199448657. The next prime is 199448713. The reversal of 199448711 is 117844991.

It is a happy number.

It is not a de Polignac number, because 199448711 - 2¹⁸ = 199186567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199448713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16535 + ... + 25928.

It is an arithmetic number, because the mean of its divisors is an integer number (15796608).

Almost surely, 2^199448711 is an apocalyptic number.

199448711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

199448711 is a deficient number, since it is larger than the sum of its proper divisors (53297017).

199448711 is a wasteful number, since it uses less digits than its factorization.

199448711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42542.

The product of its digits is 72576, while the sum is 44.

The square root of 199448711 is about 14122.6311641988. The cubic root of 199448711 is about 584.2657269101.

It can be divided in two parts, 1994 and 48711, that added together give a palindrome (50705).

The spelling of 199448711 in words is "one hundred ninety-nine million, four hundred forty-eight thousand, seven hundred eleven".