199801832 has 16 divisors (see below), whose sum is σ = 374984640. Its totient is φ = 99805936.

The previous prime is 199801831. The next prime is 199801871. The reversal of 199801832 is 238108991.

It is a self number, because there is not a number n which added to its sum of digits gives 199801832.

It is not an unprimeable number, because it can be changed into a prime (199801831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2498 + ... + 20145.

It is an arithmetic number, because the mean of its divisors is an integer number (23436540).

Almost surely, 2^199801832 is an apocalyptic number.

It is an amenable number.

199801832 is a deficient number, since it is larger than the sum of its proper divisors (175182808).

199801832 is a wasteful number, since it uses less digits than its factorization.

199801832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23752 (or 23748 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 199801832 is about 14135.1275905101. The cubic root of 199801832 is about 584.6103348985.

It can be divided in two parts, 19980 and 1832, that added together give a palindrome (21812).

The spelling of 199801832 in words is "one hundred ninety-nine million, eight hundred one thousand, eight hundred thirty-two".