199904832 has 42 divisors (see below), whose sum is σ = 572992758. Its totient is φ = 66634752.

The previous prime is 199904827. The next prime is 199904851. The reversal of 199904832 is 238409991.

It can be written as a sum of positive squares in only one way, i.e., 103550976 + 96353856 = 10176^2 + 9816^2 .

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 5 ways as a sum of consecutive naturals, for example, 172953 + ... + 174104.

Almost surely, 2^199904832 is an apocalyptic number.

199904832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199904832 is an abundant number, since it is smaller than the sum of its proper divisors (373087926).

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

199904832 is a wasteful number, since it uses less digits than its factorization.

199904832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347075 (or 347062 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 199904832 is about 14138.7705264637. The cubic root of 199904832 is about 584.7107752860.

The spelling of 199904832 in words is "one hundred ninety-nine million, nine hundred four thousand, eight hundred thirty-two".